Abstract: An apparatus and method for installing an adjustable height drain onto a conduit in a layer of hardenable material. The drain includes a grate member adjustably connected to and in fluid communication with a base member. A connection member connects the grate member and base member and is adjustable to allow the elevation of the grate member to be adjusted in relation to the base member. A spacer is disposed substantially adjacent at least a portion of the connection member to limit hardenable material from setting around the connection member when a layer of hardenable material is poured.

Abstract: An integrated shower base designed for improving the drainage of a tile shower is disclosed. The shower pan may be custom fabricated and molded with a depression surrounding a drainage opening for receiving a one piece floor drain. The pan and floor drain are welded together to prevent leaking. The floor drain contains weep holes so that water that seeps through the mortar on the shower floor and into the shower pan can drain properly without leaking. The floor drain also contains a reservoir for holding water that drains through the regular shower drain and also for water that seeps through the shower floor. A mortar guard is placed over the weep holes to prevent the holes from becoming clogged. A drainage mat is placed over the shower pan to help water seepage flow to the floor drain.

Abstract: A permanent restoration of one-piece cultured marble bathroom countertop/sinks including the insertion of a polymeric bowl within the existing sink without the need to remove or replace existing plumbing. The polymeric bowl insert is secured in place over the existing sink with an expandable drain insert. Seals and adaptive deformable strips, attached to the outer surface of the bowl, provide support and insure a snug and watertight fit within an existing cultured marble countertop/sink.

Abstract: The Autoflow aka positive drain tee is a drainage system for two basin sinks. It allows reduced clogging from having a valve in the fitting to open or close the drain from one of the sinks to allow more room for a larger volume of water to force debris through the fitting and down the drain.

Abstract: The present disclosure generally relates to flexible drainage trap assemblies and methods for constructing and installing such drainage traps. In one exemplary embodiment, a flexible drainage trap assembly includes a plumbing fixture connector, a discharge joint, and a trap portion connecting the plumbing fixture connector and discharge joint. The trap portion is shaped in such a way that it is operable to retain a pool of water inside the trap portion. The disclosed flexible drainage assemblies include a flexible portion that has a substantially smooth inner surface.

Abstract: An oil-based odor trap arrangement for a waterless urinal including (a) a bell trap tube received within a cavity situated in a lower portion of the waterless urinal, wherein one end of the tube is adapted to be removably attached to the cavity; and (b) a strainer having a body and defining a cap portion and an integrally attached ring portion extending axially away from the cap portion, wherein the strainer is adapted to be received onto an opposite end of the tube whereby the ring portion partially envelopes the tube thus forming a baffle configured to: 1) contain an oil-based substance between the ring portion and a wall of the cavity; 2) accommodate the flow of fluid from the urinal between the ring portion and the tube; and 3) direct the fluid into the tube.

Abstract: An “odorless drain assembly” comprises an outer cylinder (23) with an open top wall, and an inner cylinder (21); said outer cylinder (23) is connected with the inner cylinder (21) by a common base (22); and a gap (D) is formed in between; said outer cylinder (23) is extended with an outer edge curled down and around as a lip portion (24); and a perforated sleeve (30) covers up said inner cylinder (21) with an open bottom wall extended with an outer edge curled up (U-shape) and around as a stopper ring (31). The diameter of said perforated sleeve (30) is larger than the inner cylinder (21) but smaller than the outer cylinder (23); thereby separate inner gap (D1) and outer gap (D2) are divided from the gap (D); further a plurality of pores (32) formed at the lower half portion of a side wall of the perforated sleeve (30).

Abstract: A unitary plumbing apparatus is disclosed that serves as a drain waste water strainer trap for sinks and other plumbing fixtures as well as a filter or strainer for the exiting waste water to keep the drain pipe free flowing or to recover valuables lost into drain lines. The filter or strainer can be removed from the apparatus for cleaning by removing a cap at the bottom of the apparatus. The cap can be removed by hand. The top and bottom sections of the body of one embodiment of the apparatus are mutually rotatable for convenience in connecting inlet and outlet apparatus conduits to standing plumbing drain piping.

Abstract: A floor drain with a bottom part having at least one discharge opening, a front part that is integral with the bottom part and which has a first part inclined to the bottom part at an angle of at least 30°, and a flange part that is horizontal or inclined to horizontal at an angle of less than 20°, two side walls integral with the bottom part and first part, and a back part that is integral with the bottom part. The back part extends vertically from the bottom part, through and above the plane defined by the flange part.

Abstract: An apparatus and method for retrofitting a sink drain to a sewer pipe. A connector tube is provided with a preset curve that is cut at a selected location on the connector to provide a connection between the waste tee connector of a sewer line to a “P” connector. A “circularizing” tool is provided which shapes an elliptical end of a tube cut on a curve to a circle that telescopes into the nipple of a waste tube connector.

Abstract: A diverter (170, 270) atop the upper wall (110) of a cartridge (100) and over the opening (114, 115) therein avoids direct access of urine to the opening and the sealant (105) within the cartridge. The diverter is spaced by standoffs (182, 282) from the upper wall to provide a urine flow passage. A float (274) can be incorporated in the diverter to provide a visible signal of the presence of collected urine on the cartridge upper wall. A pre-treatment chemically-constituted tablet (210) held by a retainer (200) in the diverter provides sanitizing and/or deodorizing means. Post-treatment chemically-constituted tablets (224a) or pellets (224b) placeable at the outlet of the cartridge protect the drain pipe from corrosion and other harm.

Abstract: In a urine cartridge, equalized pressures and increased flow rate between its inlet and outlet compartments increases the life of the cartridge. The pressure equalizing is effected by placement of a separator between the two compartments to provide them with substantially equal volumes. The increased flow rate is created by a uniquely configured baffle positioned adjacent a pan at the bottom of the cartridge. The baffle configuration is shaped to provide a constriction that increases the flow velocity of the urine so that the fluid flow effects a channel along the bottom pan and through any solids deposited on the bottom pan. A diverter may be placed above the centrally located entry to the inlet compartment to create a circuitous path for preventing a disturbing impingement of the urine onto the sealant contained in the inlet compartment.

Abstract: The invention proposes an odor seal for use in or on the drainage channel of sanitary installations or the like, or on the outflow thereof, comprising a housing (101) provided with an inflow, and also comprising a helical inner wall (114) which is arranged on the housing, at a spacing apart therefrom, and forms an annular space (106) with the inner housing wall (113), and this annular space (106) is connected to an upper overflow (115), formed by way of the inner wall (114), into an outflow chamber (106) with an outwardly directed overflow connection (103), the housing (101) being an elongate conduit component which is closed at the ends on both sides and in which the helical inner wall (114) is arranged in the longitudinal direction, at a spacing apart, to form the annular space (105), which is connected to the inflow (102) and/or an inflow chamber (104).

Abstract: An automatic drain device for a sink and especially a sink without an overflow hole is provided. The device includes a magnetically controlled valve to open a return path for the flow of overflow fluid to the draining pipe. When the sink is about to overflow, water pressure increases causing the valve in the magnetically controlled valve to open a bypass path to the drain.

Abstract: A drain trap assembly for separating sediment from wastewater released from kitchen, bath or washroom appliance such as a sink or tub including a conduit with a first upper inlet portion and second upper outlet portion. Between the inlet and outlet is located a lower bend portion. Interrupting the lower bend portion is a third conduit portion including a cup closure for sediment accumulation area out of the wastewater pathway. Affixed to the closure cup and extending generally upwardly within the drain trap assembly and across the wastewater flow is a strainer in the form of at least one plate including through-holes sized to reject particulate sediment and other solids of a predetermined size. A second embodiment of the strainer takes the form of a mass of fibers affixed to the closure and extending across the wastewater flow. Closure removal automatically withdraws the strainer, offering ready access to accumulated sediment.

Abstract: A segmented drain system comprises a drain body, operable to mate with a drain fitting installed in a bath or shower area, and a bonding flange body, adjustable relative to the drain body. An integrated bonding flange extends from the bonding flange body, the integrated bonding flange being operable to be sealably attached to a bondable waterproof membrane to provide a substantially water-tight seal between the membrane and the bonding flange body. A seal is oriented between the integrated bonding flange body and the drain body, the seal being operable to provide a slidable, substantially water-tight interface between the integrated bonding flange body and the drain body.

Abstract: A water drain assembly includes an embedding ring and a seal washer, such that when a force is applied to press onto a water drain body, the deformation of hooks disposed at a lower edge of the embedding ring latches the edge of a drain through hole to abut the water drain body and fix the water drain body in position, and a rubber seal ring and a pressing member are installed into an internal hole of the water drain body, and a jam-on member is pressed into the internal hole of the water drain body, so as to press the pressing member down to a predetermined position to deform the seal ring, and achieve a tight pressing relation with a drainage pipe inserted therein to achieve a seal waterproof relation between the drainage pipe and the water drain body, and complete the overall installation of the water drain.

Abstract: A drain tube assembly for use with a lavatory or other plumbing fixture is disclosed. The lavatory has a basin, a lower drain outlet having an internal threaded bore, and a one-piece drain structure having a drain tube adjacent one axial end, an attachment sleeve adjacent an opposed axial end which is radially outwardly threaded, and a radially extending flange there between. When attached, the drain structure has an axial path extending through the attachment sleeve, flange, and drain tube to carry liquid from the lavatory out the drain tube. In a first position the flange can form a clamp member if the assembly is to be mounted through a counter top. Alternatively the flange can in a second position form a base for the lavatory when the lavatory is suspended. Movement between the positions is created by varied degrees of threading the sleeve into the lower drain.

Abstract: Siphon system attainable directly during the forming of a sanitary ware, in particular a shower tray, washbasin, bidet, water closet or any similar sanitary ware, the sanitary ware in particular having enclosed spaces and having partitions already equipped with a height difference required for an inner siphon function, wherein at least one inner partition of the sanitary ware has its free end constantly immersed in water, if present, between a receiving chamber and a deposit chamber or a drain chamber, the end of the at least one inner partition being arranged at a lower level with respect to a drain outlet in the deposit chamber or an overflow partition in the drain chamber, to prevent foul drain smell from spreading into a living area through the receiving chamber.

Abstract: A waste fitting for a basin, or similar item, comprising a first open end, a second open end and an inlet between the first and second ends. The waste fitting comprises a first seat for a plug, the inlet being located between the first seat and the second end, and a second seat for a plug, the second seat being located between the inlet and the second end. The inlet is connected in use to the overflow of the basin or similar item. With the plug in the second seat, the portion of the waste fitting above the plug, and the overflow system, may be filled with and may retain a cleaning or disinfecting product.

Abstract: A P-trap drainage device having a tubular body and a plurality of internal angled vanes which direct water flow in a circular or whirlpool pattern has a short coupling portion having a coupling thereon, and an extension portion dimensioned and configured to fit within standard sizes of plumbing pipes. In use, the device causes vertically flowing water coming from the drain to the P-trap to “swirl”, increasing the efficiency of flow. The shortness of the coupling portion allows easier use of the device in typically cramped conditions.

Abstract: The drainage arrangement has a vertically extending drain opening (13) for the shower water which is to be channeled away. Arranged downstream of the drain opening (13) is a stench trap (14), which can be connected to a disposal line (19). The drainage arrangement (13) has an inflow housing (12) which can be installed in a vertical wall (8, 4) and which forms a chamber (18) which is arranged downstream of the drain opening (13) and is intended to allow inspection of the stench trap (14). A covering (11) is preferably positioned on the front of the inflow housing (12), and this covering can be removed to allow inspection of the stench trap (14). The invention allows straightforward production of a shower with a drain opening (13) arranged in a wall.

Abstract: The invention relates to a waster trap assembly of the type which can be used in a drain hole of, for example, a sink or bath. The assembly includes sealing means such that the assembly can be moved axially between a sealing position and an open, drainage position. In the drainage position, debris is collected in a waste collecting means of the assembly rather than passing into the drain hole. The waste collecting means is provided to be manipulated between a waste collecting configuration in which the same is typically held when in the drain hole and a waste discarding configuration to which the same can be moved when it is desired to discard collected waste from the assembly.

Abstract: The present invention provides a drain system for a walk-in bathtub. The drain system includes a conventional drain opening in the bottom of the walk-in bathtub and a second drain opening in the side of the foot well of the bathtub. A motorized pump pumps water out of the bathtub through the second drain opening in the foot well. A first drain line provides water outflow from the conventional drain opening to a primary drain pipe. A second drain line provides outflow from the motorized pump to the primary drain pipe, and a third drain line joins the primary drain pipe from an overflow opening near the top of the bathtub. A low water sensor is coupled to the second drain line and motorized pump and deactivates the pump when the water level in the bathtub is equal to or lower than the second drain opening.

Abstract: A drain system includes a basin and a drain, where a first one of the basin and the drain comprises at least two substantially inflexible protrusions and a second one of the basin and the drain forms at least two apertures. The protrusions and apertures form male-female connections that facilitate positioning and anchoring of the drain in the basin. Further, stoppers/strainer and ball valves for limiting or ceasing water flow through a drain are disclosed. The stoppers/strainers and quarter turn valves may be switch-activated and moved into position by electricity, water pressure, air pressure and the like.

Abstract: A monitor embodiment, monitoring overflow levels in a bathtub, comprises an input water unit, including a control circuitry, coupled to a hot-cold water facet; a water level detection unit including telescopically joined tubes with a floatable lowest tube associated with an indicator, an uppermost tube fixed to the input unit, sensors attached to non-lowest tubes variably coupled. The sensors detect the indicator's position reaching a predetermined alarm or shutoff level, causing respective initiating an alarm signal, or terminating the input unit's water flow. Another embodiment additionally comprises an output water unit associated with the circuitry, incorporating a temperature sensor and a user preset-temperature selector. The output unit outlets cooled water from the bathtub, the input unit inlets hot water until the preset-temperature is reached, provided no alarm signal was issued. An additional sensor, incorporated in the input unit, allows adding the hot water when it's hotter than the bathtub water.

Abstract: Fixtures for trapping condensation, molds, methods of making fixtures and air conditioning systems are disclosed. The fixtures have a hollow body and at least one curved portion in which condensation may be trapped. The mold incorporates at least one mold core that may be removed from the curved portion of the molded fixture after molding.

Abstract: A water trap for sanitary appliances of the kind having an inlet (5) and an outlet (12) and including a housing (1) with an upper portion (4) provided with the inlet opening (5) adapted to receive the outlet pipe (6) of the sanitary appliance, a central portion (3) adapted to be connected to the upper portion (4), provided with a cylindrical passing through space (10), the outlet opening (12) connected to an evacuation pipe (13) situated in a lower extension of the central portion (3) and a valve housing (11), situated in the upper part, incorporating an air admittance valve (8) located above the outlet opening (12) and leaving between its lower part and the upper surface of the outlet opening (12) an air admittance area (17); a lower portion (2) connected to the central portion (3) and in which the main part of the water trap or seal is formed by use of a separation wall (20) extending from the central portion (3) into the lower portion (2).

Abstract: A pumped shower draining device for a shower installation, comprises a housing having a waste water inlet and a waste water outlet, a pump element provided within the housing, a pump driving device for driving the pump element, and a variable-engagement clutch for providing variable driving engagement between the pump driving device and the pump element. An amount of engagement imparted by the in use clutch is determined by an amount of waste water flowing from a shower unit of the shower installation. Preferably, the clutch is self-regulating, so that the amount of engagement is determined by an amount of water in or at the clutch.

Abstract: A waste container apparatus (1) is described. The waste container apparatus is adapted and constructed to collect non-fluid waste while allowing fluid waste to enter a waste water disposal system. The waste apparatus is of particular use in collectin waste from a kitchen sink.

Abstract: The present invention provides a kit for affixing a drain assembly in a drain port in plumbing fixture. The drain assembly includes a drain ring affixed to a drain pipe. The drain pipe is positionable through the drain port in a bottom surface of the plumbing fixture, such that the drain sink abuts the upper surface of the plumbing fixture. The drain pipe extends through the drain port, past an underside surface of the plumbing fixture surrounding the drain port. A drain nut is rotatably fastened onto the drain pipe. The drain nut includes a first and second of bore therein. A drain nut driver tool is provided, which includes first and second angular extensions for engaging the drain nut. The drain nut driver tool engages the drain nut by removably positioning the first and second angular extensions about the drain pipe into the first and second of bores of the drain nut. The drain nut driver tool is rotated about the drain pipe to secure the drain nut onto the drain pipe.

Abstract: An adjustable plumbing fitting has a piston rotatably and telescopically engaged in a housing, with one end of the housing adapted to be connected to a first plumbing part, and a cylindrical extension on the piston projecting from an opposite end of the housing and adapted to be connected to a second plumbing part. In one embodiment, two housings and associated pistons are integrally joined together to form a T-fitting for connecting the overflow and drain of a bathtub. In another embodiment, the housing is integrally formed with a J-shaped drain trap, and in another embodiment the housing and/or piston is integrally formed with a water closet flange.

Abstract: Not only when tableware and vessels have a point contact, but also when they have a surface contact and line contact, abrasions caused thereby are made visually less noticeable and performance of cleaning soil deposited on the surface is improved. In a surface protection structure for protecting the surface of a water-depositable member, such as the sink of a system kitchen, an embossed pattern is formed by a plurality of hemispherical projections protrusively provided on a smooth bottom face, and the embossed pattern is subjected to surface finishing with good removing property of stains. At this time, an interval between those projections which are adjoining in at least one direction and/or an interval between those projections which are adjoining in another direction orthogonal to the one direction may be set to 2.0 to 10.0 mm.

Abstract: An apparatus for preventing water leak damage from a bath fixture, the apparatus comprising a first side wall, a second side wall, a first end wall, a second end wall, a top wall, a bottom wall sloping downwardly to an outlet wherein the first and second side walls, the first and second end walls, the top wall, and the bottom wall define a compartment therebetween and wherein the water source pipes of the bath fixture extend upwardly through the bottom wall. The apparatus further includes a waterproof covering that covers the entire inside surfaces of the compartment, and a drain element that connect the outlet of the bottom wall to a drain pipe of the bath fixture. The apparatus may also include at least one removable panel to provide access to water source pipes disposed within the compartment.

Abstract: A waste outlet for a plumbing fixture comprises a body adapted to be located in the fixture outlet. The body defines a throughbore, and a portion of the throughbore includes a trough surrounding a flow opening.

Abstract: The present invention relates to a waste outlet assembly, in particular a waste outlet assembly for a urinal of the type commonly found in men's lavatories. There is described an elongate cylindrical insert having an operatively upper end and an operatively lower end and being insertable into the waste outlet of a urinal bowl or trough, which outlet includes a liquid trap, wherein the insert is radially dimensioned to provide a close fit against the walls of the waste outlet; and wherein the insert is longitudinally dimensioned such that, in use, the lower end extends into liquid in the liquid trap. There is also described a urinal including such an insert.

Abstract: A buoyant liquid level indicator device is positioned within liquid drain apparatus having a trough accommodating liquid to form a liquid seal to prevent passage of gas through the liquid drain apparatus. The indicator device will float and be exposed to an outside observer only when a liquid seal is formed by the liquid drain apparatus.

Abstract: A siphon for a sink or similar element includes an upper part, a lower pivoting part, and a connection device disposed between the parts and a gasket. The connection device includes: at least one hinge which is used to pivot and guide the lower part around the axis of the hinge and which can be uncoupled such that the lower and upper parts can be completely separated; and a locking mechanism disposed between the lower and upper parts and which have at least one clip. The connection device can be used to align the lower part of the siphon and the upper part thereof and to compress the gasket when the two parts are connected.

Abstract: A waste trap 10 for use in plumbing installations is provided, the trap comprising a unitary metal body 12 defining an interior volume, and having a tubular plastics insert 20 located in an inlet 14 of the body 12 and extending into the volume to below the height of a waste outlet 16. The insert 20 partitions the upper portion of the volume into two regions, and serves to provide a water seal between the inlet 14 and the outlet 16 when the trap is in use. The insert is non-removably secured to the body.

Abstract: A kitchen sink installation includes a plurality of adjacent kitchen sinks having drain tailpieces, a manifold pipe mounted substantially horizontally under the sinks and having a length and a plurality of discrete openings along its length, each of the openings facing upward in alignment with and spaced by an air gap from one of the sink drain tailpieces, and an outlet at one end of the manifold pipe adapted to connect to a downstream flow direction of sink effluent.

Abstract: The purpose of this multi-purpose drain is to prevent foreign matter from intruding into the down stream drainage system while providing a means to maintain the flow of liquid through the system should the primary path of flow become clogged. This invention has a wide variety of uses in all industries and can help individuals of diverse backgrounds maintain their drain piping system. The breakthrough and background of this invention relates directly to the beverage service and hotel service industries. I contend that this product can significantly reduce the labor and maintenance costs of drainage systems of all types. It can be used universally by the homeowner and maintenance professional alike.

Abstract: A conduit cleaning or clearing apparatus and method has a housing assembly connectable to a pipeline. The housing has an inlet and outlet leg joined by a bight portion. A cleaning member is rotatably disposed within the housing and may be rotated from a first unobstructing position to a second cleaning position. In the cleaning position, a plurality of spaced apart blades are able to contact and loosen any build-up in the bight portion. A wiping paddle on the cleaning member urges the loosen build-up out the outlet leg and through the drain line. The paddle cooperates with a locator seat on the housing to retain the cleaning member in an unobstructing position when not cleaning or clearing the bight.

Abstract: A mechanical breathing aid for providing a regulated supply of a breathing gas has an expiratory pressure regulator for regulating gas pressure within an expiration gas flow path dependent on an input regulatory signal and an expiratory pressure sensor disposed to sense an actual gas pressure within the expiration gas flow path and to provide an output signal indicative thereof. A control unit is operably coupled to the expiratory pressure regulator and to the expiratory pressure sensor for calculating a target pressure as a function of time dependent on a value of compliance calculated from measurements of pressure and flow of provided breathing gas made during an inspiration phase, and for generating the regulatory signal dependent on a magnitude of the difference between the target pressure and the actual pressure.

Abstract: A disposable solid waste detainment plumbing trap. The trap has a container for collecting water and solid waste discharged from a sink through a line threadably connected to an inlet of the container, and for discharging water through an outlet threadably connected to a waste line. It has a lid which seals the container, and a valve for venting either air or water from the container, to relieve the pressure of air trapped in the container. Using this disposable trap, solid waste from a sink can be quickly and easily collected and disposed of without spilling of or contact with water or the solid waste.

Abstract: A flexible drain element is used in place of a trap and has a section that is flexible with a stiffness that is selected to make clearing blockages easy and expeditious.

Abstract: Improvements in retention of the oily liquid sealant (20) in a oil-sealed odor trap (10B-10M), for drain applications such as a waterless urinal or anti-evaporation floor drain, are accomplished by minimizing turbulence in the oil sealant, such as by making the liquid flow path (22A, 22B) substantially horizontal as a departure from conventional practice of substantially vertical flow and by positioning a barrier (40) above the oil sealant to prevent direct impingement of urine or other waste products onto the sealant. The trap is thus structured to realize the substantially horizontal liquid flow path and to locate the flow path immediately beneath the sealant layer or beneath a baffle portion (16B). The baffle portion may be sloped such that stray sealant droplets are encouraged to migrate upwardly to the upper surface of the flow path due to their buoyancy and, therefore, the stray droplets will be recaptured and returned to the main sealant layer.

Abstract: An apparatus and method for aligning the exposed drain in finished surfaces in construction with the underlying drains and conduits of the construction infrastructure. The device features an inner generally planar center section, preferably round, with an off center drain aperture communicating between a top surface and a bottom surface. The center section is rotatably in a similarly shaped aperture formed in the surface material surrounding the underlying drain which can also be formed in a surrounding tile to be placed over the drain or in the finished material itself. Once the off center drain aperture is aligned with the underlying drain with the perimeter of the center section aligned with the aperture in the surrounding material, the center section is placed into the similarly shaped aperture and fixed in position with adhesive or grout and the drain strainer may be mounted into the off center drain aperture.

Abstract: Apparatus and methods for drain strainer installation and maintenance are disclosed. In one embodiment, a drain strainer assembly includes a housing having an interior chamber and defines an opening leading to the interior chamber. Inlet and outlet ports are disposed through the housing, and at least one coupling device couples the housing to a support wall such that the opening is at least approximately parallel with the support wall. The assembly further includes a strainer member positioned in the interior chamber at least partially between the inlet and outlet ports, and a door member covering the opening.

Abstract: A P-trap device for plumbing drainage systems is shown. The device has a first tubing element having a pipe attachment bell at one end and a first coupler portion at the other end and a second tubing element having a pipe attachment bell at one end and a second coupler portion at the other end, wherein said first and second coupler portions are sized and shaped to be coupled together. The device further has at least one of said first or second tubing element being a generally unshaped section sized and shaped to trap water therein. A connector to releasably couple said first and second coupler portions together is included, the connector including a sealing gasket. The sealing gasket, first coupling portion and second coupling portion are sized and shaped to permit the first and second coupler portions to be coupled together over a range of angles to form a leak resistant joint without introducing stresses into the plumbing system.

Abstract: An interior pipe has an upper end, a lower end and a central extent. An exterior pipe has an upper region receiving the central extent of the interior pipe and a lower region receiving the lower extent of the interior pipe. The lower region terminates with a removably coupled plug. A T-shaped pipe has an upper, lower and central portions. The upper portion is coupled with respect to the interior pipe. The lower portion is coupled with respect to the exterior pipe. The central portion is adapted to be joined to a wastewater line. Water passing from the sink will flow downwardly through the interior pipe and upwardly through the space between the interior and exterior pipes passing through one or more screens, then laterally through the central portion of the T-shaped pipe.