WO2010088236A1 - Graywater recycling system for home use - Google Patents

Abstract

A gravity-based collection system that semi-automatedly siphons used bathwater from inside a home into conveniently designed outdoor holding crates with sequentially-filled jugs for subsequent irrigation use within twenty-four hours after collection, wherein the system is adapted to enable configuration for delimited collection of a targeted volume, as desired by the user, with automatic stop upon attainment of target volumes, wherein installation is simple and tool-less, and wherein connection for use entails only a few quick steps because several essential components remain conveniently in position during periods of non-use.

Description

GRAYWATER RECYCLING SYSTEM FOR HOME USE

Be it known that I, Kathleen Egan, residing at 1231 Mountainside Trace, Kennesaw, GA, 30152, a dual citizen of the Republic of Ireland and the United States, have invented certain new and useful improvements in a Graywater Recycling System for Home Use, of which the following is a specification.

CROSS-REFERENCE AND PRIORITY CLAIM TO RELATED APPLICATION

The present Patent Cooperation Treaty (PCT) Application claims priority to and the benefit of United States Provisional patent application entitled "BathRecycler, a lightweight household system that enables bathwater capture and reuse for outdoor irrigation," filed on January 27, 2009, by inventor Kathleen Egan, and having assigned Serial No. 61/206,229, and claims priority to and the benefit of United States Provisional patent application entitled "Graywater Recycling System for Home Use," filed on August 4, 2009, by Sandra M. Sovinski, and having assigned Serial No. 61/231 ,154.

FIELD

The present disclosure relates generally to water recycling, and more particularly, to a graywater recycling system for home use, wherein quick and easy collection of bathwater is facilitated, along with generally automated transfer to portable containers for ease of subsequent distribution, thereby enabling efficient reuse of graywater as a landscaping irrigant.

BACKGROUND

As the world population has continued to expand, the need for protection and conservation of natural resources has become increasingly well-recognized. Recycling initiatives abound, and programs for increasing environmental awareness continue to find much support. The percentage of individuals willing to embrace ecologically efficient and/or green methodologies continues to swell. Unfortunately, at least in some fields and relative to some technologies, the inefficiencies of available green alternatives often serve to weaken individual desire toward positive contribution, even leading to complete abandonment of an ecological premise in favor of a quick and easy, less environmentally-friendly alternative.

One impressive example of a reusable resource that is largely disregarded is bathwater, despite the fact that water from baths and showers is universally considered to be the cleanest source of household graywater. A modest-sized bathtub holds forty gallons of water, and an average bather uses a minimum of twenty-five (25) gallons. Therefore, a single individual bathing every day sends almost two hundred gallons of graywater down the drain each week, even though such water is absolutely reusable within twenty-four hours for landscape irrigation.

Even in geographic regions faced with drought and severe outdoor watering bans, reuse of bath graywater has not been widely embraced by the majority. However, one study in 1992 found that 7% of the U.S. population already reused graywater, with most of those users facilitating their reuse without the assistance of any handling or treatment system. It is not surprising that the most common disadvantage cited by those graywater recyclers was the maintenance and labor involved, but it seems noteworthy that even so, a recognizable portion of the graywater reusers identified in the study remained committed to continuing graywater reuse. It seems apparent, therefore, that if the individual effort and commitment presently necessary to make effective use of bath graywater were advantageously improved, a long-felt and unmet need would be satisfied and sustained recycling would become more commonplace.

To that end, several concepts have been previously made available; however, each is disadvantageous in view of the present disclosure. For example, one available method for recycling household graywater requires installation of a complex and expensive plumbing system with pipes, filters, a water treatment protocol, and on-site storage facility. Additionally, a pump and irrigation system is required for distribution of the stored graywater, adding to the complexities and costs of installation of such a system. Even further, conformity with detailed ordinances and permitting requirements is frequently necessary. Another previously available means for recycling graywater involves modifying household plumbing to channel graywater directly onto the landscape. While this method may be less costly than installation of a specialized plumbing system, it remains disadvantageously costly, complicated, and also requires permanent installation. Additionally, the landscape must accommodate a downhill water flow, a proper mulch basin, and either channeled flow paths or a system of branching pipes. Such systems are additionally disadvantageous in that little or no variation is possible relative to outdoor distribution of the water about the landscape.

The simplest method, relative to involved components, involves hauling used bathwater in buckets or jugs through the house, a strenuous, time consuming, and potentially messy and dangerous option. The arduous task of this method must either be completed immediately following a bath, which is at least very inconvenient, or the graywater must be temporarily retained in the bathtub, which is a serious safety hazard, particularly for households with children.

Still a further method involves collection of graywater by retrofit of a drain attachment; however, the system directs water storage only within the proximate area of the bathtub, such that irrigation use is effectively prohibited.

One method intended to overcome that type of limitation involves the use of a siphon pump with a hose connection, wherein the water is directed out of the home through a garden hose directly to the landscape or into a storage receptacle. However, even this simpler method remains disadvantageous in view of the present disclosure, wherein a potentially leaky and/or dirty outdoor hose must be dragged into the house with each use and then removed immediately afterwards, no consideration is given to tubing positioning during transfer, and no methodology or equipment is defined as a manner for estimating a target collection volume. Further, no particular consideration is given to the workability of the storage receptacle, wherein the probability of graywater remaining in storage for more than twenty-four hours may be heightened; and no particular consideration is given to the manner of distribution, wherein the water must be removed manually from the storage container or, if the graywater is to be sent directly to the landscape, then the same timing disadvantages apply as with buckets or jugs. Therefore, it is readily apparent that there is a need for a method and device for home recycling of graywater, wherein expensive, difficult, and/or professional installation is not necessary, wherein permits are not required, wherein easy, convenient, cost-efficient, and safe reclamation of a pre-selected volume of bathtub graywater is facilitated, according to a securely yet at least partially, temporarily configured tubing transfer system, and wherein landscape distribution of the collected water is easily facilitated via the combined collection /storage /transport mechanics, thereby avoiding the above-discussed disadvantages.

BRIEF SUMMARY

Briefly described, in a preferred embodiment, the present system overcomes the above-mentioned disadvantages and meets the recognized need for such a device by providing a system and device for quickly, easily and efficiently collecting and reusing graywater from a bathtub to maintain controlled landscape irrigation, without requiring direct human transport of water or other collection components from inside to outside of the home, and without requiring any filtration or disinfection.

According to its major aspects and broadly stated, in its preferred form, the present device is a gravity-based collection system that semi-automatedly siphons used bathwater from inside a home into conveniently designed outdoor holding crates with sequentially-filled jugs for subsequent irrigation use within twenty-four hours after collection, wherein the system is adapted to enable configuration for delimited collection of a targeted volume, as desire by the user, with automatic stop upon attainment of target volumes, wherein installation is simple and toolless, and wherein connection for use entails only a few quick steps because several essential components remain conveniently in position during periods of non-use.

More specifically, the device of the present disclosure in its preferred form is a graywater recycling system for home use that functions as a single unit, but for clarity of purpose, is described as three component sections, generally comprising three steps: (1 ) graywater extraction, (2) graywater transfer, and (3) graywater receiving/distribution, with particularly configured device elements for advantageously performing each step. The initial graywater extraction step is preferably accomplished with connectable indoor tubing and related spool, siphon pump with delimiting depth gauge, and volume calculation chart with instructions. The graywater transfer step preferably involves a window saddle and connectable outdoor tubing. Finally, the graywater receiving/distribution step is preferably accomplished via strategic utilization of connectable drop extension tubing, holding crates, collection jugs with an adapted water transfer manifold performing a dual function as jug caps and connector tubing, and an optional transport cart for most efficient distribution. In an alternate embodiment, the tubing connectors may be color coded, such that identification of male and female components is readily ascertainable.

In order to generally describe the preferred manner of installation and use of the present system and device, further description regarding particular component features is provided, first directed toward those minimal components that remain in place during periods of non-use in order to facilitate ease of subsequent use, as selectively desired. For example, the window saddle is efficiently configured to remain draped over the window frame, holding an integrated weight without impacting the normal use, opening, and/or closure of the window. The window saddle is thus preferably manufactured from a sturdy yet flexible plastic material or the like, thin enough to allow the window to close property when the user is not transferring bathwater, wherein the weight configuration allows for balanced hanging inside the window frame, and prevents the window saddle from falling out of the open window due to the weight of the outdoor tubing. That is, preferably, a length of outdoor tubing remains extended, secured in position by the window saddle, proximate to and just outside the window, to an end position above a holding crate. The preferred limitation to the length of the outdoor tubing is a safety feature intended to avoid the undesirable and/or potentially dangerous attraction of children and/or pets, wherein a length of drop extension tubing is utilized to span the gap between the outdoor tubing and the holding crates for accomplishing water transfer.

Preferably stored below the window, and below the lower end of the outdoor tubing, the holding crate, or plurality thereof, is preferably adapted with an internally- integrated frame that serves to position a plurality of collection jugs, facilitating correct alignment for insertion of an adapted water transfer manifold and assisting in jug positioning in essentially all phases of use of the system. For example, preferred structural features of the frame are directed to jug support, as upright during fill, and also when upside-down, to allow for complete draining of any residual captured gray water after use. Additional frame features allow for integration of the water transfer manifold, as will be further described hereinbelow.

With respect to the other system components, each preferably has a preferred in-use position and a preferred non-use, storage position, wherein transition from one position to another requires only a minute or two of user interaction. On the home exterior, during periods of non-use, the manifold preferably remains integrated inside the crate lid, and a storage area in the crate receives and holds the drop extension tubing and the connector tubing. The water transfer manifold contains the mechanism having an internal channel with jug inserts and tubing couplers and connector tubing for distributing the water being collected, enabling gray water to flow separately into the series of jugs, with each jug receiving gray water only after the prior jug is filled.

In the home interior, during periods of non-use, the indoor tubing may be conveniently stored on a tubing spool, such that any temporary obstruction caused by the indoor tubing extending the distance between the bathtub and the window is limited to the brief water collection period, after which the tubing can be immediately removed and returned to its pre-positioned storage location. Siphon pump with integrated delimiting depth gauge and coupler insert, and laminated instructions including a volume calculation chart, may also be conveniently stored, wherein an on-board grommet allows convenient hanging of the device.

According to the preferred use, at some time prior to the intended collection a brief outdoor activity is required; the jugs in the holding crate are preferably upturned, the drop extension tubing is connected to the outdoor tubing hanging from the window, and the jug manifold is connected to the jug openings. Inside, at the time of collection, the indoor tubing is connected to the outdoor tubing secured proximate the window, such that indoor tubing extends from the window to the bathtub. The other end of the indoor tubing is connected to the siphon pump and the integrated delimiting depth gauge is set by adjusting the band marker to the surface of the bathwater. This controls the flow volume according to the distance of the water surface from the intake point, estimated according to the reference chart and secured via a wing nut. The siphon pump is squeezed or pumped briefly to begin the self-sustaining flow. It should be noted in another alternate embodiment, the indoor tubing is positioned in the water, with the siphon pump and weight attached to the tube, wherein the siphon pump is similarly squeezed to begin the self-sustaining flow. However, irrespective of these two embodiments, when the desired volume has been collected outdoors, the water flow will automatically cease because the siphon action will be interrupted by the water surface dropping to the level of the intake point.

At any time thereafter, but within twenty-four hours, the water collected in the jugs may be utilized to irrigate landscaping, wherein the optional cart adapted with a detachable frame to stabilize up to eight jugs facilitates transport of a plurality of jugs for ease of watering.

Thus, a feature and advantage of the present system is its convenient and efficient combination of three component sections, graywater extraction, graywater transfer, and graywater receiving/distribution, enabling single system functionality.

Another feature and advantage of the present system is its ability, through a generally automated transfer, to facilitate quick and easy collection of bathtub graywater without arduous effort or direct transport outdoors by the user.

Yet another feature and advantage of the present system is its ability to assist a single bather in semi-automatedly collecting scores of gallons of graywater each day, thereby facilitating daily landscape irrigation on a typical magnitude of twenty- five (25) gallons or more per day.

Another feature and advantage of the present system is its ability to be quickly and easily utilized in any new or pre-existing home, without need for costly or complicated permanent installation of equipment, without need for a permit, and without the use of tools, as all system components are adapted within the existing home layout.

Still another feature and advantage of the present system is the easy flexibility of system components, wherein the following equipment transitions are facilitated: 1 ) from strategically positioned component storage placement to set-up for transfer, wherein at some time prior to the intended collection of graywater, a brief user outdoor activity of only a minute or two is required; and at the desired time of collection a brief indoor activity enables quick, easy and convenient set-up for transfer, wherein the user is frequently not even required to leave the bathroom, much less exit the home, after which the transfer of bathwater is automatic and may continue without necessitating the presence of the user; 2) from transfer position to component storage placement with brief activities as described above, but in reverse; 3) during system transition to longer-term storage (for seasonal alleviation of need or any other reason the user deems necessary), from strategically and conveniently positioned component storage placement to longer storage, wherein the system accommodates neatly integrated containment of all overlaid components and lightweight relocation to an appropriate location of the user's choice.

Still yet another feature and advantage of the present system is its ability to be quickly and easily utilized in any new or pre-existing home, without need for or the cost of plumbing modification within existing plumbing codes, and without necessitating potentially risky tie-in between household fresh water and graywater pipes, thereby eliminating risk of cross-contamination.

Still yet another feature and advantage of the present system further related to its ability to be quickly and easily utilized in any new or pre-existing home, without need for or cost of plumbing modification within existing plumbing codes, is the elimination of the potential for immediate or future accidental cross-connection between the household's fresh water and graywater pipes, such as during plumbing repairs, and elimination of the potential for graywater contamination of a household's fresh water. Yet still another feature and advantage of the present system is its ability to legally assist in the irrigation of household landscapes, even within current and anticipated constraints during municipal watering restrictions, and thereby provide reassurance to users considering investments in improved landscapes, and their ability to maintain such investment even considering possible future municipal watering restrictions. That is, as a renewable resource, graywater from bathing does not 'run out' during prolonged drought periods, unlike water captured in rain barrels. As a result, households' confidence is improved and investment in landscapes encouraged, thereby providing economic support to local businesses, such as landscapers, retail garden centers and plant wholesalers, and also generating positive environmental benefits and enhanced quality of life, particularly in urban neighborhoods comprised of homes and townhouses, wherein landscaping may lessen the potential negative impact of urbanization by improving air quality, decreasing energy consumption, recharging groundwater, reducing storm runoff, lessening erosion and reclaiming soil nutrients.

Still yet another feature and advantage of the present system is its ability to assist in the protection and conservation of natural resources, particularly water, by offering an efficient, green alternative for those desiring to not only maximize the beneficial return from at least a portion of household water, but also to proactively conserve water to lessen demand on aquifers and reservoirs.

Yet a further feature and advantage of the present system is its reinforcement of household members' water use awareness, wherein participatory action required of each user likely encourages a culture of conservation within the household, and likely residually improves year-round water use behavior. Moreover, the heightened water use awareness likely reinforces continued water reuse, as well as other conservation actions, and may, by extension, encourage household members to more fully appreciate water resources and to actively participate in their protection in a variety of ways.

Another feature and advantage of the present system is its ability to assist in water conservation, particularly during drier growing seasons when landscape irrigation is most needed and municipality water-use typically peaks. That is, realized conservation benefits during municipal water-use peaks directly increases a municipality's "effective water supply," wherein such benefits can assist in delaying, or even eliminating the need to expand or add more costly water-focused infrastructure, and/or may decrease the likelihood that more dramatic measures, like watering bans, will become necessary.

Yet another feature and advantage of the present system is its ability to decrease total water usage for each user previously exclusively utilizing private well- water for landscape irrigation, thereby decreasing the direct economic impact of such well use by lowering electricity consumption, as well as minimizing environmental impact.

A further feature and advantage of the present system is its ability to decrease total water usage, and thus water usage fees, for a user previously utilizing metered water directly for landscaping. Moreover, because a user's decreased water consumption will naturally occur within periods including municipal water-use peaks, cost savings will compound if municipal rate structures reflect an increased cost for peaking use, wherein surcharges such as for higher seasonal usage or inclining block rate structures may be avoided.

Still a further feature and advantage of the present system is its ability to assist a homeowner in reducing water discharge fees, relative to water usage fees, by allowing for collection of graywater metering data and reporting of same for equivalent discharge fee reduction.

Still another feature and advantage of the present system is its ability to assist a homeowner in alleviating the re-presentation of a portion of household water for treatment, relative to water being more efficiently and thoroughly cleaned in the most biologically active upper part of soil rather than municipal energy- and chemical- reliant treatment processes and the related municipal cost of said processes. Reducing the volume of water requiring treatment lessens the volume of hazardous chemicals used in that process, wherein disinfectants like chlorine (a toxin that also creates carcinogenic by-products), chloramine (which is toxic to fish and amphibians and does not rapidly dissipate, as chlorine does, on standing or boiling), and ozone (which creates bromate) may often be utilized.

Another feature and advantage of the present system is its ability to assist a homeowner in reusing graywater on landscaping, whereby some 'pollutants' become naturally repurposed as 'nutrients'. That is, water reuse on soil reclaims nutrients (phosphorus, nitrogen, biological bits, etc.) otherwise lost through wastewater treatment and/or disposal in rivers, thereby preventing entrance of particular pollutants into bodies of water and reducing the threat of oxygen depletion to ecosystems of streams, rivers and lakes.

Another feature and advantage of the present system is its ability to facilitate estimation and generally automated collection of a target volume of graywater.

Another feature and advantage of the present system is its outdoor collection component designed to sequentially fill individual jugs which, at approximately 10 pounds or 5 kilograms each, are manageable for the average user to lift and manipulate during irrigation.

Still another feature and advantage of the present system is its outdoor collection component design that provides for filled jugs, ready for distribution, without the need to wait for jugs to fill (as might be the case with further transfer from a large holding container), at the user's selected time of irrigation (anytime within twenty-four hours of collection), and which a plurality of jugs can be loaded onto a cart for efficient transport and reuse as landscaping irhgant.

Yet another feature and advantage of the present system is its ability to efficiently direct graywater from a bathroom to an outdoor collection component via gravitational force and siphon action, thereby eliminating the need for a powered pump, and avoiding the higher purchase price and associated embedded energy and ecological costs thereof. Another feature and advantage of the present system is its convenient ability to remain partially in position for ease of use, especially relative to a window, without impacting that window's use or the adjacent room area's utilization.

Still another feature and advantage of the present system is its ability to enable the user to mindfully choose specifically what graywater to reuse on the landscape, thereby avoiding any inadvertent chemical contamination of landscaping, such as may occur in some automatic graywater systems where "accidental" allowance of harsh chemicals into the system may occur. Moreover, water reuse likely expands personal awareness of the user regarding what he or she puts down the drain, whether or not the water is intended for reuse, thereby leading to fewer dumped toxins. Relatedly, water reuse encourages people to be mindful of household products that are not only biodegradable, but also biocompatible with plants and soils.

A further feature and advantage of the present system is its design, wherein application of graywater directly to the soil surface is facilitated without the use of an automatic irrigation system; because solids inherent in graywater may be directly received as compost in soils, no screens, media filters, sand filters or settling tanks are needed, and because no filtration is necessary, maintenance of such a system is beneficially avoided.

Yet still another feature and advantage of the present system is its beneficial lack of any extensive maintenance or cleaning protocol, wherein relative to the indoor system components, maintenance or cleaning protocol will be approximately equivalent to that typically applied to indoor bathroom devices, and relative to the outdoor system components, maintenance or cleaning protocol will be approximately equivalent to that typically applied to outdoor tools and equipment. Beneficially, the tubing is transparent, thereby allowing the user to become visually aware of any periodic need to run a cleaning solution through the tubing. Additionally, the water transfer manifold opens for periodic rinsing or cleaning, and recommended jug use allows jugs to empty completely after each use, thereby minimizing any necessary cleaning tasks. Another feature and advantage of the present system is the ability of its design to reduce or even eliminate the possibility of graywater spillage inside the house, wherein the only tubing connections occur inside the bathtub and outside the window, and wherein tubing couplers are robust, preferably with an audible click when properly linked.

A further feature and advantage of the present system is its elimination of the possibility for outdoor dirt and debris (or water from a leaky outdoor hose) to inadvertently be brought inside the house from the outside, as no system components are transferred into or out of the house during setup or use.

A still further feature and advantage of the present system is its design which naturally encourages easy reuse of the entire volume of graywater contained within the outdoor collection component within twenty-four hours of collection and, therefore, requires no water treatment or disinfection systems or protocols, nor any necessary maintenance of said treatment or disinfection system.

Yet a further feature and advantage of the present system is its ability to allow for controlled graywater collection and application only as needed by the landscape, therefore allowing the graywater to pass slowly through topsoil where natural purification occurs, therefore causing no unintentional overwatehng of landscape or application onto saturated soils, and therefore causing no standing puddles or surface runoff or untreated flow into waterways or untreated flow onto adjoining homeowner properties, such as may occur in automatic dispensation systems.

These and other objects, features and advantages of the present invention will become more apparent to one skilled in the art from the following description and claims when read in light of the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will be better understood by reading the subsequent section entitled "Detailed Description of the Preferred and Alternate Embodiments" with reference to the accompanying drawing figures, in which like reference numerals denote similar structure and refer to like elements throughout, and in which:

FIG. 1 is a perspective view of a graywater recycling system, according to the preferred embodiment;

FIG. 2 is a partial, perspective view of the preferred siphon pump with integrated delimiting depth gauge for use in the system of FIG. 1;

FIG. 3A is a perspective view of a window saddle for use in the system of FIG. 1 , shown installed in a window for graywater transfer;

FIG. 3B is a partial perspective inside-window view of the window saddle of FIG. 3A, showing the tubing just prior to connection for graywater transfer;

FIG. 3C is a partial perspective outside-window view of the window saddle of FIG. 3A, showing the tubing just prior to connection for graywater transfer;

FIG. 4A is a partial, cross-sectional view of a jug positioned in an outdoor holding crate, first upside-down for draining, and second upright for filling, according to the preferred embodiment;

FIG. 4B is a perspective view of an outdoor holding crate, showing a lid hinge, according to the preferred embodiment;

FIG. 4C is a perspective view of an outdoor holding crate, showing a hinged lid, jug-positioning configuration and integrated water transfer manifold for use in the system of FIG. 1 , according to the preferred embodiment;

FIG. 5A is a partial, side view of a water transfer manifold, according to the preferred embodiment;

FIG. 5B is a partial cross-sectional view of the water transfer manifold of FIG 5A, showing water flowing thereinto; FIG. 6A is a partial perspective view of a water transfer manifold and hinge, according to an alternate embodiment;

FIG. 6B is a partial cross-sectional view of a water transfer manifold, showing water flowing thereinto, according to an alternate embodiment;

FIG. 7 is a partial perspective view of connector tubing and cap for a holding crate, according to an alternate embodiment;

FIG. 8A is a partial view of a delimiting depth gauge, according to an alternate embodiment;

FIG. 8B is a plan view of a conversion chart, according to an alternate embodiment;

FIG. 8C is a partial cross sectional view of a graywater recycling system installed in a bathtub, according to an alternate embodiment;

FIG. 9A is a perspective view of weight for a graywater recycling system, according to an alternate embodiment;

FIG. 9B is a cross sectional view of a graywater recycling system installed in a bathtub, according to an alternate embodiment;

FIG. 9C is a perspective view of a delimiting depth gauge, according to an alternate embodiment;

FIG. 1OA is a perspective view of a jug filling system and manifold, according to an alternate embodiment;

FIG. 1OB is a perspective view of a dolly with a jug crate positioned thereon, according to an alternate embodiment; FIG. 1OC is a perspective view of connector tubing and related jug caps, according to an alternate embodiment;

FIG. 11A is a first perspective view of a dolly with one graywater holding crate positioned for transport, and also showing a garden accessory storage crate capable of functioning as a positional booster for the graywater holding crate, according to an alternate embodiment;

FIG. 11 B is a second perspective view of a dolly with one graywater holding crate in a position, slid away from the dolly back, according to an alternate embodiment;

FIG. 11C is a third perspective view of a dolly, showing a garden accessory storage crate in position to function as a positional booster for a graywater holding crate, according to an alternate embodiment;

FIG. 11 D is a fourth perspective view of a dolly, showing the dolly in a tipped- over position with a graywater holding crate positioned for draining, according to an alternate embodiment;

FIG. 11 E is a perspective view of a jug filling system, according to an alternate embodiment;

FIG. 11 F is a perspective view of a jug, according to an alternate embodiment; and

FIG. 11G is a perspective view of a holding crate with a jug therein, according to an alternate embodiment.

DETAILED DESCRIPTION OF THE PREFERRED AND ALTERNATE EMBODIMENTS

In describing the preferred and alternate embodiments of the present invention, as illustrated in the figures and/or described herein, specific terminology is employed for the sake of clarity. The invention, however, is not intended to be limited to the specific terminology so selected, and it is to be understood that each specific element includes all technical equivalents that operate in a similar manner to accomplish similar functions.

Referring now to FIG. 1 , the preferred embodiment is a graywater recycling system and device 10, comprising three interrelated steps: graywater extraction 110, graywater transfer 210, and graywater receiving/distribution 310, and further comprising a plurality of preferably configured subcomponent device elements for advantageously performing each preferred step, as more fully described below. It should be understood that incorporation and/or utilization of each and every preferred subcomponent device element is not required for functionality of graywater recycling system and device 10; however, the preferred configuration is exemplahly described in detail, wherein the advantage of each preferred subcomponent device element should be readily apparent.

Preferred subcomponent device elements for graywater extraction 110 comprise indoor tubing 120, spool 130, siphon pump/ delimiting depth gauge 140, and volume calculation chart with instructions 150. For graywater transfer 210, preferred subcomponent device elements comprise window saddle 220 and outdoor tubing 230. And, graywater receiving/distribution 310 preferably comprises the subcomponent device elements of drop extension tubing 320, plurality of crates 330, plurality of jugs 340, water transfer manifold 350, crate connector tubing 360, and optional transport cart 370 with detachable jug frame 380.

Indoor tubing 120, outdoor tubing 230, drop extension tubing 320, and jug connector tubing 360 are each preferably one-half inch, ultraviolet-resistant polyurethane, adapted with pressure-fit connectors 122, 232, 322, and 362, respectively. The preferred utilization of the plurality of connectors 122, 232, 322, 362 in concert with tubing 120, 230, 320 and 360 enables quick assembly of graywater recycling system 10 without necessity for dragging any hose, tubing, or the like through the house. Indoor tubing 120 is preferably of a customized length, according to user- specified tubing length, wherein indoor tubing 120 preferably is able to extend from the bathtub B to the window W. Tubing spool 130 is preferably provided for convenient storage of indoor tubing 120 during periods of non-use, wherein tubing spool 130 is preferably adapted for convenient unwinding and rewinding of indoor tubing 120. Tubing spool 130 may be adapted as a freestanding, rotatable spool, may be wall mounted or door mounted, and may be adapted for automated and/or semi-automated winding or retraction of tubing 120, according to user preference and according to the necessary length of indoor tubing 120. According to this preferred embodiment, any temporary obstruction caused by indoor tubing 120 is limited to the brief water collection period, wherein thereafter, indoor tubing 120 may be immediately removed and returned to its pre-positioned storage location. In such manner, graywater recycling system 10 may be effectively utilized in essentially any home, even if no window W is available in the bathroom, wherein indoor tubing 120 could simply extend out of the bathroom and through an adjacent room or hallway leading to a suitably available and user-selected window W. It should be noted that although the incorporation and utilization of spool 130 is preferred, graywater recycling system 10 could be utilized and installed without spool 130, such as in a home wherein the necessary length of indoor tubing 120 is short, and/or wherein any user preferentially desires to handle and store indoor tubing 120 without spool 130.

Indoor tubing 120 is preferably removably connected to siphon pump/delimiting depth gauge 140 via connector 122. Referring now to FIG. 2, siphon pump 141 is preferably of relatively simple design, adapted to be primed by squeezing, until atmospheric pressure and gravity cause bathwater to flow unassisted, via inlet pipe 144, bellows 142, internal valve (not shown), and outlet tubing 143. Of course, other alternate, more complex types of pumps could also be utilized, such as a mechanically assisted pump device or any other suitable pump, as desired. However, the preferred embodiment of graywater recycling system 10 is directed toward the most efficient, simple, and cost-efficient design to enable easy and inexpensive adaptation to any home, thus, the preferred configuration of siphon pump with integrated delimiting depth gauge and weighted base. Weighted base 149 is preferably formed as generally flat, non-marring disc, preferably adapted with grommet 149a to facilitate convenient hanging storage during periods of non-use, and with post 149b to facilitate supportive attachment of inner tube 146. The weight is selected according to a preferred balance of ease of user manipulation and placement, and ability to stabilize positioning of siphon pump 140 during use.

Inlet port 144a is preferably secured to and positioned proximate distal end 145a of outer tube 145. Distal end 146a of inner tube 146 is preferably secured about post 149b of weighted base 149, and outer tube 145 is preferably coaxially and slidingly positioned along the length of inner tube 146. Outer tube 145 preferably carries reference markings 145b, such as the referenced millimeter scale shown in the figures. Wingnut 148 is preferably positionally adapted at proximal end 145c of outer tube 145, wherein wingnut 148 serves to selectively secure outer tube 145 in a desirable position relative to inner tube 146.

Band marker 147 is preferably a sturdy, yet slightly flexible, resilient and slidably positionable member that facilitates generally automated delimiting of the volume of bathwater that flows through siphon pump 141 , wherein a user may quickly and easily select and collect a particular volume according to the number of desired and available outdoor jugs 340. That is, band marker 147 preferably extends about both outer tube 145 and inlet pipe 144, serving as a manner of visual indication and confirmation of the desired position for outer tube 145 prior to beginning the graywater collection process. Band marker 147 essentially controls the total flow volume, according to its distance from inlet port 144a, estimated according to reference chart 150, wherein band marker 147 is slidably positionable about outer tube 147 in order to mark the desired distance from the surface of the bathwater to inlet port 144a, wherein outer tube 145 is secured via wing nut 148.

For example, when outer tube 145 is at its lowest position relative to distal end 146a of inner tube 146, inlet port 144a is situated proximate the floor of the bathtub B, thereby enabling a maximum volume of bathwater, essentially all, to be transferred. As noted, an estimate is utilized for initial placement of band marker 147, as determined by reference to chart 150. Thus, band marker 147 is positioned proximate the surface of the bathwater, and when the desired volume has been collected, according to that selected via reference chart 170, the water transfer automatically ceases because the siphon action is interrupted by the bathwater surface level dropping to the level of the intake point, inlet port 144a. Subsequently, the delimiting may be fine-tuned by slight adjustment to band marker 147, according to actual use results, wherein after fine-tuning, band marker 147 may preferably remain in place, marking the optimum depth in a position proximate inlet port 144a to delimit the correct volume of bathwater for the particular user's system capacity.

As noted, chart 150 is preferably a coordinated element of graywater recycling system 10, wherein laminated instructions and a volume calculation chart allow for ease of correct arrangement of system elements to facilitate generally automated collection of a selected volume of water. Accordingly, by reference to chart 150, a user may selectively position outer tube 145 and band marker 147 to collect a desired volume of graywater so as not to overflow jugs 340, even during an initial use.

Referring again to FIG. 1 and also to FIGS. 3A-3C, another component of preferred graywater recycling system 10 is window saddle 220. Window saddle 220 is preferably an "I" or "T" shaped member, wherein base 222 is preferably weighted, wherein top 223 contains integrated loops to secure tubing 230, and wherein center length 224 is preferably flat. The preferred configuration of window saddle 220 is intended to facilitate extension thereof across the threshold of a selected window W, wherein base 222 is positioned on the interior of window W, top 223 is positioned on the exterior of window W, and center length 224 extends therebetween, wherein the material of manufacture for window saddle 220 is preferably selected to be weather resistant and/or weather proof, sturdy, and generally conformable. That is, the flat nature of center length 224, coupled with the preferred conformability, allows window saddle 220 to adapt to the threshold of window W in such manner that the operability of window W is not impacted thereby. That is, window W may be opened and/or closed without influence from or on window saddle 220.

Outdoor tubing 230 is preferably secured to window saddle 220 with the integrated loops and proximate connector 232a, preferably remaining in place during periods of use and non-use of graywater recycling system 10. The preferred weighting of window saddle 220 is directed at providing the necessary support for secure retention of outdoor tubing 230. Because indoor tubing 120 connects to outdoor tubing 230 to facilitate graywater transfer 210, the fixed positioning of outdoor tubing 230 proximate window W, as facilitated by window saddle 220, enables quick, easy, and convenient set-up for transfer 210, wherein the user is frequently not even required to leave the bathroom, much less exit the home. Outdoor tubing 230 preferably extends, outside the home, proximate window W, the distance from window W to crate 330 minus one five foot (5') length section. This preferred gap-to-ground region is a safety feature intended to decrease risk of unintentional contact with dangling outdoor tubing 230, such as by a child, pet or other animal. Preferably, drop extension tubing 320 connects to outdoor tubing 230 at connector 322, spanning the gap-to-ground region and extending to plurality of crates 330, preferably stored generally below window W.

With specific reference to FIGS. 1 and 4A-4C, each crate 330 is preferably adapted with internally-integrated frame 332, wherein frame 332 serves to position a plurality of collection jugs 340 within each crate 330, wherein frame 332 serves to facilitate correct alignment of plurality of jugs 340 for successful connection of manifold 350, and wherein frame 332 generally assists in positioning of plurality of jugs 340 during all phases of use of graywater recycling system 10.

With reference to FIGS. 4B and 4C, each crate 330 is preferably adapted to hold eight jugs 340, wherein internally-integrated frame 332 holds jugs 340 positioned upright, but preferably at an angle. Frame 332 preferably has a molded undulatory vertical surface, such that jugs 340 are angularly supported, thereby serving to maintain plurality of jugs 340 in alignment for ease of insertion of manifold 350. During periods of non-use, each jug 340 is preferably held, upside-down, angularly supported by the undulatory surface as shown in FIGS. 4A, in order to facilitate complete drainage of any residual water therefrom into drainage outlet 331. Preferably, the frame 332 is also comprised of a molded ripple along the horizontal surface, such that individual jugs 340 are held upright even upon removal of one or more jugs 340 from crate 330 (not shown). Each crate is preferably comprised of a crate base 333 with three hinges 333a and a crate lid 334 with 4 hinges 334a. Crate base 333 and crate lid 334 are secured with two hinge pins 335.

Referring now to FIGS. 1, 4B, 4C, 5A and 5B, manifold 350 is preferably adapted with internal channel 354, plurality of jug inserts 356, tubing couplers 362a and connector tubing 360 for transferring the collected water, enabling graywater to flow separately and serially into plurality of jugs 340, wherein each jug 340 receives graywater sequentially, after the prior jug 340 is filled. Jug inserts 356 preferably define a frusto-conical shape that facilitates engagement into plurality of jug openings 346. Manifold 350 is preferably adapted with four hinges 351 , wherein hinges 351 join in sequence with the aforementioned crate base hinges 333a and crate lid hinges 334a, to be secured with hinge pins 335.

The preferred arrangement of internal channel 354 is along a path extending from tubing coupler 362a at one end of manifold 350, branching successively into and then back out of each jug insert 356, and finally extending to the opposite tubing coupler 362a. Water flow can be directed into either tubing coupler 362a and will fill each jug 340 before exiting out the opposite tubing coupler 362a, such that water can flow into system from either end and in either direction. Drop extension tubing 320 preferably connects to coupler 362a for fill. If more than one crate 330 is desired, connector tubing 360 is utilized to connect from one tubing coupler 362a on a first manifold 350 to another tubing coupler 362a on a second manifold 350.

In another embodiment for manifold 350, representatively shown in FIGS. 6A and 6B, manifold 350 functions in an essentially similar manner, but is not sealed. That is, graywater flows sequentially from trough-like receptacles 352, essentially serving as funnels 353, wherein trough-like receptacles 352 define internal channel 354 with a series of overflow ports that facilitate transfer of graywater to the next sequential jug 340 upon filling of a first jug 340. Manifold 350 is preferably adapted with four hinges 351 , wherein hinges 351 join in sequence with the aforementioned crate base hinges 333a and crate lid hinges 334a, to be secured with hinge pins 335. As with the other preferred manifold arrangement, internal channel 354 is defined along a path extending from tubing coupler 362a at one end of manifold 350, branching successively into and then back out of each jug insert 356, and finally extending to the opposite tubing coupler 362a.

As noted hereinabove, internally-integrated frame 332 functions to maintain aligned positioning of jug openings 346 relative to manifold 350, according to either above-referenced embodiment, wherein it is preferred that a seal is created between manifold 350 and each jug opening 346. Plurality of clips (not shown) are preferably employed to secure manifold 350 in position proximate crate 330 in order prevent potential for unintentional disengagement of manifold 350 from plurality of jugs 340 as water pressure increases.

Each jug 340 is preferably approximately a 5 liter or VA gallon container for easy manageability. Access is facilitated by release of plurality of clips, lifting of hinged manifold 350 from plurality of jugs 340, wherein manifold 350 temporary reposes onto open crate lid 334, and removal of jug 340 for irrigation use. The preferred utilization of a plurality of manageably-sized containers avoids the disadvantages associated with a large, stationary collection container, such as difficulties in timely removal and distribution of collected water, and in ensuring complete draining before introduction of new graywater. Comparatively, each of the plurality of jugs 340 of preferred graywater recycling system 10 is easy to lift, transport, and pour at a desired landscape location. Because graywater must be dispersed onto the outdoor landscaping within twenty-four hours of collection, the ten-pound or 5 kilogram filled weight of preferred jug 340 is a targeted, manageably handled volume intended to encourage ease of prompt use.

Further, and as a manner of further convenience, graywater recycling system 10 preferably includes cart 370, adapted to conveniently transport a plurality of jugs 340, thereby enhancing ease of distribution of graywater throughout a landscape. Preferably, cart 370 is adapted with a detachable frame 380 for organization of jugs 340, and is also adapted for dumping in order that beneficial multi-use needs are supported. It is intended that in an alternate embodiment, the detachable frame 380 could be provided as a retrofit element suitable for utilization in a pre-existing garden cart, wagon, or wheelbarrow. According to the preferred use of graywater recycling system 10, no tools or plumbing installation is necessary, and components remain strategically and conveniently positioned to facilitate transition to use upon only a minute or two of user interaction. That is, at some time prior to the intended collection of graywater, a brief outdoor activity is required, wherein plurality of jugs 340 in crate 330 are preferably upturned, drop extension tubing 320 is connected to outdoor tubing 230 and manifold 350, and manifold 350 is inserted into plurality of jugs 340. Subsequently, at the desired time of collection, indoor tubing 120 is connected to outdoor tubing 230 proximate window W and to siphon pump 140. Siphon pump 140 is positioned and squeezed briefly to begin the self-sustaining flow, with the number of repetitive squeezes related to the distance from the bathtub B to outside of window W. Thereafter, the graywater flow continues in a self-sustaining manner, wherein the transfer of graywater is automatic and may continue without necessitating the presence of the user. After the graywater has transferred, with the flow volume determined by the siphon pump/delimiting depth gauge 140, the user may return all components to storage/non-use locations, as desired, and may commence to fully drain any remaining bathwater in traditional manner, if necessary.

At any time thereafter, but within twenty-four hours, the water collected in plurality of jugs 340 should be utilized to irrigate landscaping, wherein cart 370 or pre-existing garden cart, wagon, or wheelbarrow retrofit with detachable frame 380 may be utilized to facilitate transport for ease of watering.

In an alternate embodiment, graywater recycling system 10 may be adapted with a collection meter, wherein data regarding volume of collected graywater may be accumulated, locally or off-site, wherein the collection meter could be of any suitable configuration, such as, without limitation, mechanical, electrical, or digital. Because the collected graywater is not being released into the sewer discharge, the data may potentially be utilized for presentation, for example, to municipal authorities for appropriate adjustment of sewer discharge fees relative to the typical charge basis founded upon incoming water meter flow volumes. According to a further alternate embodiment, window saddle 220 may be I- shaped wherein base 222 and top 223 are weighted, and outdoor tubing 230 could be secured to window saddle 220.

According to still another alternate embodiment, tube connectors 122, 232, 322, 362 could be color-coded for visual clarity of corresponding connectability, wherein, for example, but without limitation, female connectors could be green and male connectors could be blue, such that male and female connector identification is quick and apparent.

And according to another alternate embodiment, a hand truck style transport 700 could be utilized, such as depicted in FIGS. 11A-11 D and 10B, wherein such a transport would have all-terrain wheels 702 and integrated locking supports 704 to hold one or more crates 330 for distribution of graywater about a landscape.

In another alternate embodiment, referring now to FIGS. 9A-9C, indoor tubing 120 could connect to alternate siphon pump 500, wherein weight ring 502 could be utilized to retain tubing 120 underwater for collection, and wherein the positioning of weight ring 502 along indoor tubing 120 could direct the depth of immersion and control the volume of graywater extracted. Alternate volume calculation chart 800, referring now to FIGS. 8A-8C, could provide reference depths and related water collection volumes for ease of selection according to desired volume of graywater, and wherein depth gauge 802 could allow for accurate depth confirmation. In such an embodiment, the depth of the open tubing end is adjusted by sliding weight ring 502 either nearer to or further from the open tubing end. For example, if 5/4 inches is the correct depth of graywater in the user's bathtub needed to fill the selected plurality of jugs 340, weight ring 502 is adjusted so the tubing end floats 5/4 inches below the water's surface.

In an embodiment such as shown in FIGS. 9A-9C, the purpose of depth gauge 510 is to consistently mark the optimum depth for the open tubing end, wherein depth gauge 510 is placed in the graywater to float near the open tubing during each system use. Weighted bottom edge 512 of depth gauge 510 is adjusted to a specific depth by moving integrated float 514 up or down along a notched surface. When adjusted depth gauge 510 touches the bottom of the bathtub, the volume of the available jugs 340 is adequate to collect the entire volume of graywater and weight ring 502 may be adjusted to hold the open tubing end own at the drain, the lowest point in the bathtub.

In another alternate embodiment, referring now to FIG. 1OA, plurality of jugs 600 and plurality of crates 602 could be utilized, wherein each jug 600 could hold one gallon and each crate 602 could hold four jugs 600. In such a configuration, graywater could flow between plurality of jugs 600 according to alternate connector means 604, such as seen in FIG. 10C and FIG. 7, for example. And, referring now to FIG. 7, alternate connector means 604 could include secure jug cap 606, Y- connector tubing 608, and series of connectors 610, wherein water flow into and between plurality of jugs 600 could be facilitated thereby.

And, finally, an another alternate embodiment, referring now to FIGS. 11 E- 11 G, alternate single jug crate 900 and jug 902 could be utilized for those users desiring a larger volume container. In this embodiment, owing to the considerable weight of a filled, large volume container, an alternate transport system is utilized, as exemplahly depicted in FIGS. 11A-11D. As may be observed in FIG. 11 A, a traditionally configured dolly, or hand truck, may be utilized to transport, for example, graywater holding crate 900 with filled jug 902. For convenience in manipulation, as further discussed, a generally lightweight garden accessory storage crate, for example, may be clipped on to the dolly for subsequent and dual use as a booster for graywater holding crate 900. As depicted in FIG. 11 B, one step in the handling process may involving sliding graywater holding crate 900 away from the back of the dolly. Referring now to FIG. 11 C, the garden accessory storage crate is shown lowered into position as a booster. And, finally, relating to this alternate embodiment transport system, in FIG. 11 D, the dolly may be tipped over with graywater holding crate 900 positioned for draining, as desired by the user, wherein the booster height provided by the utilization of garden accessory storage crate provides sufficient clearance for positioning of a watering container below the spout of jug 902, thereby facilitating convenient use of the graywater therefrom. Having thus described exemplary embodiments of the present invention, it should be noted by those skilled in the art that the within disclosures are exemplary only, and that various other alternatives, adaptations, and modifications may be made within the scope of the present invention. Accordingly, the present invention is not limited to the specific embodiments illustrated herein, but is limited only by the following claims.

Claims

I claim:

1. A system for recycling household graywater, comprising: a plurality of tubing lengths with connectors, said plurality of tubing lengths dimensioned to extend, as connected, from a graywater collection point inside a dwelling, through a window exit, and outside of the dwelling; a water delimiting gauge capable of fluid communication with at least one of said tubing lengths and of directing a stoppage of a flow of graywater through said plurality of tubing lengths; a pump connectable to at least one of said tubing lengths, said pump capable of engaging the flow of graywater through said plurality of tubing lengths; means to determine a setting for said water delimiting gauge; and a window saddle carried proximate said window exit, said window saddle securing a position of at least one of said plurality of tubing lengths.

2. The system of Claim 1 , further comprising a means for retaining at least one of said plurality of tubing lengths inside the dwelling.

3. The system of Claim 2, wherein said means for retaining at least one of said plurality of tubing lengths inside the dwelling is a spool.

4. The system of Claim 1 , wherein said means for estimating a water volume transferred from the graywater collection point is a volume calculation reference chart.

5. The system of Claim 1 , further comprising one or more receptacles positioned outside of the dwelling, and in fluid communication with at least one of said plurality of tubing lengths.

6. The system of Claim 5, wherein said one or more receptacles is a plurality of jugs, and further comprising at least one crate for holding said plurality of jugs.

7. The system of Claim 6, further comprising a manifold, said manifold configured to engage with said plurality of jugs and with said at least one of said plurality of tubing lengths.

8. The system of Claim 5, further comprising a cart configured to transport said one or more receptacles.

9. The system of Claim 8, wherein said one or more receptacles is a plurality of jugs and said cart has a detachable jug frame.

10. The system of Claim 1 , wherein said pump is a siphon pump.

11. The system of Claim 1 , wherein said plurality of tubing lengths, when connected for use, further comprise an indoor tubing segment, an outdoor tubing segment, a drop extension segment, and a jug connector segment.

12. The system of Claim 1 , wherein said connectors are pressure-fit connectors.

13. The system of Claim 1 , further comprising a weighted base configured to secure a selected position of said pump.

14. The system of Claim 1 , wherein said water delimiting gauge further comprises an inner tube and an outer tube, said outer tube selectably positionable relative to said inner tube, and a band marker selectably and slidably positionable about said water delimiting gauge

15. The system of Claim 1 , wherein said window saddle further comprises at least one weighted region proximate at least one end, a generally flat region, and means for retaining at least one of said plurality of tubing lengths.

16. The system of Claim 15, wherein said means for retaining said at least one of said plurality of tubing lengths is one or more loop members.

17. The system of Claim 6, wherein said crate further comprises a frame, said frame configured to retain a plurality of jugs in a first angularly upright position and in a second angularly upside-down position.

18. The system of Claim 17, wherein said frame of said crate further comprises a ripple configured to support a first of said plurality of jugs in position irrespective of the presence or absence of a second of said plurality of jugs.

19. The system of Claim 6, wherein said crate is further comprised of a hingedly related base and lid.

20. The system of Claim 7, wherein said manifold further comprises an internal channel and a plurality of jug inserts, and wherein said plurality of jug inserts may sealingly relate to said plurality of jugs.

21. The system of Claim 20, wherein said manifold further comprises at least one hinge, said at least one hinge configured to engage with said hingedly related base and lid of said crate.

22. The system of Claim 7, further comprising a plurality of manifold retention clips configured for secure positioning of said manifold relative to said crate.

23. The system of Claim 1 , further comprising a collection meter operatively engaged to gather graywater collection data.

24. The system of Claim 1 , wherein said connectors are color-coded.

25. A method of collection household graywater, comprising the steps of: obtaining a plurality of tubing lengths with connectors, a water delimiting gauge capable of fluid communication with at least one of said tubing lengths and of directing a stoppage of a flow of graywater through said plurality of tubing lengths, a pump connectable to at least one of said tubing lengths, said pump capable of engaging the flow of graywater through said plurality of tubing lengths, means to determine a setting for said water delimiting gauge, a window saddle carried proximate said window exit, said window saddle securing a position of at least one of said plurality of tubing lengths, a manifold, and one or more receptacles positioned outside a dwelling; positioning said one or more receptacles to receive collected graywater; connecting a first of said plurality of tubing lengths, a drop extension tubing length, to said manifold; inserting said manifold into said one or more receptacles; connecting said drop extension tubing length to a second of said plurality of tubing lengths, an outdoor tubing length; connecting a third of said plurality of tubing lengths, an indoor tubing length, to said outdoor tubing length proximate said window saddle; indicating a desired volume of graywater to be collected to said water delimiting gauge; positioning and operatively engaging said pump to begin a gravitationally self- sustaining flow of graywater; and allowing the graywater to flow until stopped by said water delimiting gauge.