Abstract: An arch-shaped corrugated chamber having corrugation peaks and valleys, with reinforcing ribs provided on the corrugation peaks. The ribs extend upwardly from a chamber base to a rib upper end, and have an arch-shaped cross-section with an outer surface extending outwardly from a corrugation peak and a fin extending inwardly from the corrugation peak, and optionally, a rib line provided on the rib outer surface on the rib arch-shaped cross-section. A channel formed by the inner surface of the rib is sized to receive a corresponding rib of a second chamber so that multiple similar chambers with ribs may be stacked together.

Abstract: A liquid run-off disposal system (10) comprising an elongate tank structure (22) having one or more sections adapted to be arranged end to end in a substantially horizontal orientation below ground. The tank structure (22) also includes a plurality of apertures (14) provided in the side walls thereof wherein, in use, when liquid run-off is piped into the tank structure (22) it can drain away by soaking into the surrounding soil.

Abstract: In a family of plastic leaching chambers, each having an arch shape cross section and corrugations, there are chambers of different top heights and possibly different widths. Each chamber has a common size of end connector, so chambers within the family, of any size, can be interconnected. Preferably, the height of an end connector is no more than the top height of the smallest chamber in the family. Preferred chambers have one or more hollow pillars extending downwardly within the interior of the chamber; and preferred chambers have peak corrugations which are substantially wider than the intervening valley corrugations.

Abstract: Modules for use in an assembly for managing the flow of water beneath a ground surface and assemblies of such modules are disclosed. The modules include supports and a deck portion and the supports are spaced apart and form channels with a main section of the deck portion. The deck portion also includes at least one section extending from a main section.

Abstract: A plastic arch-shape cross section corrugated stormwater chamber has a multiplicity of crest corrugations and valley corrugations which run transverse to its length. Sub-corrugations run along part or all of the arch-curve lengths of either crest corrugations or valley corrugations, or along both of them. A sub-corrugations are smaller in dimension than an associated crest corrugation or valley corrugation. Sub-corrugations may taper in width and depth and may taper to nothingness. A compound convex shape end cap, useful for closing off the ends of stormwater chambers, has substantially vertical corrugations with analogous sub-corrugations.

Abstract: A modular or integral appendage for a septic gallery or conduit has a first section for connected to a lateral side of the gallery with the first section having a number of apertures thereon. The first section has a first area. The lateral side of the septic gallery has a second area. The first area is greater than the second area for increased drainage and thus adds capacity to the gallery or conduit. The second area has protuberances thereon.

Abstract: Modular storage and controlled outflow systems for controlling a flow of water and methods of assembly of modular storage and controlled outflow systems having indirect flow of water through the system. Modular systems for controlling a flow of water having beams extending across the modules to direct the flow of water in an indirect manner or a serpentine or semi-serpentine manner. Modular storage and controlled outflow systems for treatment and filtration of water.

Abstract: A connection chamber for waste water and storm water collection, the connection chamber including an arch-shaped cut out in a side thereof, the arch-shaped cut out sized to receive an arch-shaped row connector, which is provided to couple rows of chambers to each other. The coupling of various rows of chambers to each other facilitates the relatively even flow of fluid throughout the field of chambers.

Abstract: A drainage system includes a storm water chamber and riser assembly for gathering and dispensing liquids. The storm water chamber comprises a generally elongated arch shape with an arch top and bottom side walls, thereby defining an enclosure. The riser assembly has two generally parallel base assemblies, which each have an outer wall and an inner wall and a top wall connecting the outer wall and the inner wall. The top wall has a chamber seating area for receiving the base area of the chamber and a retaining element for retaining the base area of a chamber in position in the chamber seating area.

Abstract: Modular storage and controlled outflow systems for controlling a flow of water and methods of assembly of modular storage and controlled outflow systems having indirect flow of water through the system. Modular systems for controlling a flow of water having beams extending across the modules to direct the flow of water in an indirect manner or a serpentine or semi-serpentine manner. Modular storage and controlled outflow systems for treatment and filtration of water.

Abstract: Arch shape cross-section leaching and stormwater chambers are connected together so that swiveled angling is obtained at the joint. Angling is accomplished by means of an integral or detachable dome end comprising a conical section. A like chamber with an ordinary end mates by overlapping the dome. Or a like chamber may have an opposing and overlapping end, which also comprises a dome. A coupling for connecting two ordinary end chambers is comprised of two spaced apart conical domes spaced apart by a connector. The connector between the domes is optionally straight or angled. The couplings enable chambers to be connected at diverse angles to each other, as well as to be connected parallel with offset, i.e., with zigzag path.

Abstract: A plastic leaching chamber has an arch shape cross section, corrugations, and one or more hollow pillars extending downwardly within the interior of the chamber, to support the top of the chamber when the chamber is under load during use. Chambers nest within one another to form a stack of chambers for transport or storage. Chambers have peak corrugations which are substantially wider than the intervening valley corrugations. Chambers having different widths and profiles have common size connectors.

Abstract: A method for treating wastewater in a leaching field comprises forming and burying in soil a continuous curve arch shape cross section injection molded thermoplastic leaching chamber. The chamber has inwardly curving sidewalls perforated with closely spaced horizontal slots and peak corrugations which are closely spaced apart on about 8 inch center-to-center distance or less. The chamber configuration in combination with certain plastic material properties and thickness provide strength sufficient to meet regulatory requirements when the soil above the buried chamber is subjected to load.

Abstract: A drainage system includes: at least one first drainage pipe to be disposed within the ground and including a single-piece first porous pipe wall that has a top open end, a bottom open end for extending to a level distant from the ground surface, and a plurality of first through holes to permeate the surface water into adjacent soil areas; and at least one second drainage pipe transversely connected to the first drainage pipe, and including a single-piece second porous pipe wall that has two opposite open ends, and a plurality of second through holes disposed between the two opposite open ends of the second porous pipe wall to permeate the surface water into adjacent soil areas.

Abstract: A retention basin enclosure includes a plurality of prefabricated concrete vertical wall segments, a baffle unit and at least one steel connecting dowel. Each wall segment includes a horizontal top end that defines a notch and two vertical edges that define at least one cylindrical bore. The baffle segment includes a vertical edge surface that defines a plurality of cylindrical bores and a horizontal planar member from which a plurality of protrusions extend upwardly therefrom so that the baffle segment reduces water flow velocity. Two baffle vertical wall members each have a planar vertical surface that defines a plurality of cylindrical bores disposed so that at least one of the cylindrical bores defined by concrete baffle segment can be placed in alignment with at least one of the cylindrical bores defined by the planar vertical surface.

Abstract: A stormwater detention system includes a containment row for removing and collecting solids from stormwater. The containment row may be surrounded by a water-impermeable membrane, and designed to receive incoming water before other rows of the detention system. The containment row collects solids from the stormwater before the water is redirected into one or more additional rows, which are water permeable and buried in water permeable media. Filter structure may be associated with a flow system that delivers water from the containment row to the additional rows.

Abstract: A drainage system includes a storm water chamber and riser assembly for gathering and dispensing liquids. The storm water chamber comprises a generally elongated arch shape with an arch top and bottom side walls, thereby defining an enclosure. The riser assembly has two generally parallel base assemblies, which each have an outer wall and an inner wall and a top wall connecting the outer wall and the inner wall. The top wall has a chamber seating area for receiving the base area of the chamber and a retaining element for retaining the base area of a chamber in position in the chamber seating area.

Abstract: A modular or integral appendage for a septic collection housing having a first section for connected to a lateral side of the housing with the first section having a number of apertures thereon. The first section has a first area. The lateral side of the housing has a second area. The first area is greater than the second area for increased drainage and thus adds capacity to the housing. The second area having a plurality of protuberances thereon.

Abstract: An adjustable coupler is disclosed for interconnecting leaching chambers to create a serpentine pathway for a leaching field. A coupler can connect a first leaching chamber and a second leaching chamber. The coupler can comprise a mating feature and an adjustment feature. The mating feature can be used to mate the coupler between the first leaching chamber and the second leaching chamber. The mating feature can include a swivel connector matable to an end of one of the chambers. The adjustment feature can adjust the angle between the first chamber and the second chamber between a range of angles. The adjustment feature can include a swivel connector. The range of angles can be particularly chosen to be about 45°. More particularly, the range of angles can be about 22.5° in either the clockwise or counter-clockwise direction.

Abstract: The invention is a particle and sediment filter for stormwater. A long permeable filter bag is laid out horizontally within an enclosure. The bag is formed of at least two layers of parallel tubes that give each layer the pleated look of a typical air mattress. Stormwater is collected from the filter bag by perforated pipes held within the creases between the tubes of the layers of the bag, with the pipes draining to the outside of the enclosure. The bag is also supported above the bottom of the enclosure by additional perforated pipes located within the creases between the tubes, thus allowing the filtered liquid to also drain off beneath the bag. The stormwater input is from a pipe that feeds a manifold formed in the bag and connected to each tube. The top of the enclosure is removable for replacing the filter. The filter bags are constructed of flexible material so that they are flat during initial transport and installation, but they expand as they are filled with liquid and solid material.

Abstract: A leaching chamber having opposing inwardly and upwardly running sidewalls extending toward a top portion is provided, wherein the leaching chamber includes a plurality of peak and valley corrugations formed by the sidewalls and extending over the top portion and a plurality of diagonally opposed ribs, the plurality of ribs extending diagonally across at least a portion of the top portion to form at least one X shaped pattern.

Abstract: A plastic leaching chamber has an arch shape cross section, corrugations, and one or more hollow pillars extending downwardly within the interior of the chamber, to support the top of the chamber when the chamber is under load during use. Chambers nest within one another to form a stack of chambers for transport or storage. Chambers have peak corrugations which are substantially wider than the intervening valley corrugations. Chambers having different widths and profiles have common size connectors.

Abstract: A water collection and storage assembly for receipt and gradual dispersion of water comprises a half pipe assembly defining a chamber and having an interior, the half pipe assembly having at least one half pipe having an inlet, an outlet, and a corrugated exterior comprising alternating ribs and valleys, wherein the chamber is defined by the interior of the half pipe assembly and the interior is smooth.

Abstract: A splash plate for use with an end cap or end portion of a chamber is provided, wherein the end cap or end portion defines an end cavity having an open end cavity bottom and includes an opening for containing a waste water pipe that introduces waste water into the end cavity. The splash plate includes a base panel for covering the end cavity bottom such that waste water introduced into the end cavity contacts at least a portion of said base panel and a means for positionably securing the splash plate relative to the end cap or end portion.

Abstract: A connection chamber for waste water and storm water collection, the connection chamber including an arch-shaped cut out in a side thereof, the arch-shaped cut out sized to receive an arch-shaped row connector, which is provided to couple rows of chambers to each other. The coupling of various rows of chambers to each other facilitates to relatively even flow of fluid throughout the field of chambers.

Abstract: A storm water and septic system using plastic galleries that have multiple layers provided having differing hardness characteristics, the exterior layer having a lower hardness rating than an inner layer; and a multi-layer gallery where the inner layer is treated to be resistance to degradation to a selected chemical that would otherwise degrade polyethylene. The gallery may further be provided with an interior layer having defined dielectric properties such that a fluid level measurement can be made of fluid in the galleries.

Abstract: A water collection and storage assembly for dispersion of water comprises a half pipe assembly comprising at least one half pipe having an inlet, an outlet, a top, a bottom, a corrugated exterior comprising alternating ribs and valleys, and at least one side port positioned above the bottom of the half pipe, and a sleeve positioned in an installed position within the half pipe and defining a smooth interior, wherein the sleeve extends from the bottom of the half pipe to a height less than the at least one side port. The half pipe assembly can define a chamber and the sleeve has a dimple which extends into the chamber. The sleeve can have an opening which allows projections of the port hole to extend through the opening and into the chamber.

Abstract: A molded plastic arch shape cross section corrugated leaching chamber has opposing perforated sidewalls running up from feet. Each foot comprises a horizontal flange, an outer-edge fin, and transverse ribs, which define compartments on the flange surface. Drain holes through the flange within each compartment enable water from nearby sidewall perforations to flow downwardly into the soil during use.

Abstract: A leaching chamber has sidewall perforations which flare inwardly, so that the smallest perforation dimension is on the exterior surface of the sidewall. The basic axes of the perforations run downwardly toward the chamber base, as the axes run from the inside to outside of the chamber. Mold cores having inwardly retracting slides, and which move in complex ways, are used to form the chamber. Thus, perforations are present down near the base flange of the sidewall, even though the base flange has an upwardly extending fin.

Abstract: The invention relates to an integrated belowground vault with filter catch basin, that allows the runoff water to enter into a belowground two-part vault passing through a commercially available replaceable filter before being transferred out to the sewer, Rood control system or out through a French drain consisting of a cavity below the device that is filled with drain gravel. A layer of filter cloth can optionally be placed over the drain gravel. This device will be manufactured in variety of sizes and shapes and made from several different materials. The device has the unique ability of being capable of filtering low flow water runoff while allowing high volume to pass through with the added benefit of not retaining water that can become a mosquito breeding ground.

Abstract: A leaching chamber having an arch-shaped cross-section, a pair of contiguously molded, opposing end walls, and alternating peak and valley corrugations along its length, is provided interior chambers and fluid communication openings along the base on each extending side of the chamber. Formed within the chamber at locations corresponding to each peak corrugation, an inner wall is attached to an interior surface and extends substantially within the peak corrugation to the base of the chamber. An aperture is formed in both the inner wall and in the opposing outer wall of the chamber, enabling fluid communication through the interior chamber—and thus into and out from the interior of the leaching chamber itself.

Abstract: A continuous curve arch shape cross section corrugated injection molded thermoplastic chamber is provided and includes a body having a multiplicity of peak and valley corrugations running along the curve of the arch shape, wherein the multiplicity includes opposing sidewalls, each having a foot, opposing chamber ends connected to the body, the ends shaped to form joints with the ends of like chambers, a multiplicity of sprues, within spaced apart valleys, at elevations intermediate the foot and apex of the chamber, wherein each sprue has a first runner running upwardly alone the valley in direction of the apex, and a second runner running downwardly along the valley toward the foot, a base runner connected to the bottom of the second runner, running lengthwise along the foot of the chamber; and at least one third runner connected to the base runner and running upwardly along a peak adjacent the valley.

Abstract: An end plate for closing off the end of an arch shape cross section corrugated storm water chamber, which receives water for dispersal beneath the surface of the earth, has a dished portion which projects outwardly from the end of a chamber to which it is attached, preferably by means of a flange which engages the corrugations of the chamber. Ribs inside the end plate add strength.

Abstract: An injection molded plastic corrugated leaching or storm water chamber has a peak corrugations segment with a flattened and thickened web. The web is the portion of the corrugation which runs from the peak to the floor of the adjacent valley. Preferably, flattened web segments are at the apexes of adjoining corrugations, to create an increased thickness band region, running lengthwise along the chamber from an injection nozzle location or sprue. The flattened web segments enable better melted plastic flow during molding, without increasing nesting height.

Abstract: A continuous curve arch shape cross section leaching chamber made of molded thermoplastic has closely spaced corrugations and sidewalls, portions of which are perforated with horizontal slots. Either or both of the slot height and the local wall thickness of the sidewall portion which defines the slots may vary with slot elevation from the base. The chambers are free of interior and exterior strengthening ribs. They provide high interior storage volume and high leaching area in combination with low mass or weight of plastic material. An exemplary 34 inch wide chamber has more than 1.5 cubic feet of water storage volume per foot, less than 4 pounds weight of thermoplastic material per foot, and at least 30 square inches of slot-provided leaching area per foot.

Abstract: A leaching chamber having an arch-shaped cross-section, a pair of contiguously molded, opposing end walls, and alternating peak and valley corrugations along its length, is provided interior chambers and fluid communication openings along the base on each extending side of the chamber. Formed within the chamber at locations corresponding to each peak corrugation, an inner wall is attached to an interior surface and extends substantially within the peak corrugation to the base of the chamber. An aperture is formed in both the inner wall and in the opposing outer wall of the chamber, enabling fluid communication through the interior chamber—and thus into and out from the interior of the leaching chamber itself.

Abstract: A continuous curve arch shape cross section leaching chamber made of molded thermoplastic has closely spaced corrugations and sidewalls, portions of which are perforated with horizontal slots. Either or both of the slot height and the local wall thickness which defines the slots may vary with slot elevation from the base, so that a perforated sidewall configuration is achieved which resists entry of surrounding soil.

Abstract: A molded plastic corrugated arch shape cross section leaching chamber has a dome end for forming a pivotable joint with a like chamber. The dome of the dome end has one or more preferably trapezoid shape shallow surface depressions, for strength. The depressions are specially placed so that soil cannot enter the interior of the chambers, regardless of the angle between the chambers.

Abstract: An adjustable coupler is disclosed for interconnecting leaching chambers to create a serpentine pathway for a leaching field. A coupler can connect a first leaching chamber and a second leaching chamber. The coupler can comprise a mating feature and an adjustment feature. The mating feature can be used to mate the coupler between the first leaching chamber and the second leaching chamber. The mating feature can include a swivel connector matable to an end of one of the chambers. The adjustment feature can adjust the angle between the first chamber and the second chamber between a range of angles. The adjustment feature can include a swivel connector. The range of angles can be particularly chosen to be about 45°. More particularly, the range of angles can be about 22.5° in either the clockwise or counter-clockwise direction.

Abstract: A modular appendage for a septic gallery has a first modular section for connection to a lateral side of the gallery with the first modular section having a number of apertures thereon. The first modular section has a first area. The lateral side of the septic gallery has a second area. The first area is greater than the second area for increased drainage and thus adds capacity to the gallery.

Abstract: A thermoplastic chamber for leaching wastewater or other use, which is designed so that when jointed to a like chamber the horizontal plane angle between the chambers can be adjusted, has one or more stops which can be selectively used to prevent rotation, for instance, to make the joined-together chambers lie along a straight line. Preferably, the stop is integral part of the chamber base flange; and it hinges and bends upwardly when moved to its working position, so the stop engages and limits movement of the end of the mating chamber.

Abstract: Arch shape cross-section leaching and stormwater chambers are connected together so that swiveled angling is obtained at the joint. Angling is accomplished by means of an integral or detachable dome end comprising a conical section. A like chamber with an ordinary end mates by overlapping the dome. Or a like chamber may have an opposing and overlapping end, which also comprises a dome. A coupling for connecting two ordinary end chambers is comprised of two spaced apart conical domes spaced apart by a connector. The connector between the domes is optionally straight or angled. The couplings enable chambers to be connected at diverse angles to each other, as well as to be connected parallel with offset, i.e., with zigzag path.

Abstract: A leaching device having slots to frictionally engage soil to permit the introduction of water through the slots and into the soil while prohibiting the excessive passage of soil particles through the slots. A method of introducing water into soil by passing water through slots that frictionally engage soil to permit water to pass through the slots and which prohibits the excessive passing of soil particles through the slots.

Abstract: A leaching chamber, particularly a chamber which lacks ribs and is therefore flexible along its length, has a length in the range 4 to 5 ft, a length to width aspect ratio of between 1.2 and 1.6 and a weight of less than 3 pounds per foot, preferably about 12 pounds for a 4 ft chamber. Since the chamber length is less and the mass is more favorably concentrated, handling of chambers, and installing chambers in trenches is improved. The ability of a string of interconnected chambers to curve is increased.

Abstract: An arch shape cross section molded plastic stormwater chamber, which has a multiplicity of corrugations, can be nested within another like chamber for shipment. The width and included angle between the opposing sides of each corrugation both decrease with elevation from the base of the chamber.

Abstract: A wastewater treatment and dispersal system wherein wastewater will stand until it has a BOD of less than about 125 mg/l. The dispersal field may comprise inner and outer conduits, an inner conduit and a permeable outer cover, or a trough and an enclosure.

Abstract: An assembly for receiving and diffusing stormwater in underground installations includes a horizontally elongated plastic chamber having an arched cross-sectional shape with an upwardly directed apex having an inlet portal. A sediment-accumulating compartment is positioned below the chamber in vertical alignment with the portal. A rigid riser pipe of circular cylindrical configuration penetrates the portal and extends vertically between a bottom extremity located within the chamber and a top extremity positioned substantially at ground level in association with a grated street-level stormwater receiving structure.

Abstract: A splash plate for use with an end cap or end portion of a chamber is provided, wherein the end cap or end portion defines an end cavity having an open end cavity bottom and includes an opening for containing a waste water pipe that introduces waste water into the end cavity. The splash plate includes a base panel for covering the end cavity bottom such that waste water introduced into the end cavity contacts at least a portion of said base panel and a means for positionably securing the splash plate relative to the end cap or end portion.

Abstract: An adapter is used with a leaching chamber or like article to change the invert elevation for a pipe which carries water to the article. The first end of the adapter fits a hole or other port on the article. The body of the adapter rotates about that first end, changing the elevation of the second end relative to the base. Stops on the adapter body limit rotation: in one direction so the first and second ends are vertically aligned; and in the opposing direction so that the lengthwise axes of the first and second ends lie in an inclined plane. Thus, three positive invert elevations can be set for an inlet pipe for a particular article: a first and second at each limit of rotation of the adapter, and a third and lowermost elevation, wherein the adapter is not used.

Abstract: A liquid dispensing chamber for use with a drainage system for gathering and dispensing liquids to the ground is disclosed, which includes an elongated wall body having a generally arch-shaped cross-sectional configuration with a top wall portion and a pair of side wall portions thereby defining an enlarged enclosure therein, the elongated wall body including a first end portion and a second end portion, at least one of the end portions defining therein an axial opening to allow axial flow of liquids there-through, a plurality of circumferential reinforcing members disposed along the circumference of the elongated wall body for reinforcing structural strength thereof, and at least one side desk member disposed at least a location in the side wall portions of the elongated wall body. The at least one side deck member selectively includes a lateral opening therein for connecting a connection conduct thereto. Liquid drainage systems utilizing the liquid dispensing chambers of the invention is also disclosed.