Abstract: A drainage system for delivering fluid from a source of fluid for absorption into the ground, comprises a trench, a pair of perforated drainage conduits extending longitudinally in said trench and laterally spaced from each other to define an open chamber therebetween. The conduits are connected at one end to the source for receiving fluid from the source and delivering fluid to the chamber. A longitudinally extending cover overlies said conduits and prevents soil from falling into the chamber. The cover includes side portions which engage the conduits and a center portion connected to the side portions and maintains the conduits in laterally spaced relationship. The cover also includes reinforcing arches extending between the side portions and the center portion to resist downward deflection of the cover under the weight of the top soil. Vent holes in the cover permit the system to breathe.

Abstract: A drainage system for delivering fluid from a source of fluid for absorption into the ground, comprises a trench, a pair of perforated drainage conduits extending longitudinally in said trench and laterally spaced from each other to define an open chamber therebetween. The conduits are connected at one end to the source for receiving fluid from the source and delivering fluid to the chamber. A longitudinally extending cover overlies said conduits and prevents soil from falling into the chamber. The cover includes side portions which engage the conduits and a center portion connected to the side portions and maintains the conduits in laterally spaced relationship. The cover also includes reinforcing arches extending between the side portions and the center portion to resist downward deflection of the cover under the weight of the top soil. Vent holes in the cover permit the system to breathe.

Abstract: An apparatus and method for manufacturing a drainage line unit. The apparatus includes a mandrel having an inner cavity. Rear, upper and front openings communicate with the mandrel cavity. Preferably, a controller connected to at least one sensor is operably positioned to control the apparatus. A pipe feeder feeds perforated vent pipe through the inner cavity of the mandrel from the rear opening to the front opening and therethrough. The pipe is positioned within the inner tube cavity so as to define a void space between the pipe and the wall of the mandrel. A hopper assembly has an exit port positioned for feeding a plurality of plastic bodies into the cavity. A blower produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies.

Abstract: An apparatus and method for treatment of waste water effluent includes a main conduit connected to a source of waste water, and a removable filter positioned within the main conduit, the filter comprising a light weight particulate material for filtration of the effluent. A drain field for filtration treatment of waste water effluent comprises a source of waste water effluent, a main conduit in fluid connection with the source of waste water, and at least one in-line filter positioned within the main conduit, the filter comprising light weight particulate material. The drain field may comprise at least one extension conduit connected in fluid communication with the main conduit and extending substantially upwardly therefrom, said extension conduit having a removable cap comprising a sensor to thereby generate a signal when water in said extension conduit reaches a predetermined level.

Abstract: An apparatus and method for treatment of waste water effluent includes a main conduit connected to a source of waste water, and a removable filter positioned within the main conduit, the filter comprising a light weight particulate material for filtration of the effluent. A drain field for filtration treatment of waste water effluent comprises a source of waste water effluent, a main conduit in fluid connection with the source of waste water, and at least one in-line filter positioned within the main conduit, the filter comprising light weight particulate material. The drain field may comprise at least one extension conduit connected in fluid communication with the main conduit and extending substantially upwardly therefrom, said extension conduit having a removable cap comprising a sensor to thereby generate a signal when water in said extension conduit reaches a predetermined level.

Abstract: An aggregate chamber for leaching effluent comprises a chamber cavity, at least one panel positioned along a periphery of the chamber cavity, and aggregate for filtering effluent. The chamber unit may include a plurality of foldingly connected panels, and at least one conduit for delivering effluent. A leach line comprises a trench excavated in a leach field, and a plurality of chamber units having a cavity, at least one panel, and aggregate for filtering effluent. A leach field comprises a source of effluent, a plurality of trenches excavated in the soil adjacent the source of effluent, and a plurality of leach lines positioned in the plurality of trenches in fluid connection with the source of effluent, each leach line having at least one chamber unit comprising a cavity, at least one panel, and an aggregate for filtering effluent.

Abstract: An apparatus and method for treatment of waste water effluent includes a main conduit connected to a source of waste water, and a removable filter positioned within the main conduit, the filter having a light weight particulate material for filtration of the effluent. A drain field for filtration treatment of waste water effluent includes a source of waste water effluent, a main conduit in fluid connection with the source of waste water, and at least one in-line filter positioned within the main conduit, the filter having a light weight particulate material. The drain field may include at least one extension conduit connected in fluid communication with the main conduit and extending substantially upwardly therefrom, the extension conduit having a removable cap and a sensor to thereby generate a signal when water in the extension conduit reaches a predetermined level.

Abstract: A sequential flow filtration chamber for treatment of waste water effluent from a septic tank comprises an inlet positioned in fluid communication with the septic tank for receiving waste water into the chamber, at least one partition positioned within the chamber so as to define a substantially sequential flow path for the waste water, a filter positioned within the flow path for filtering the waste water flowing therethrough, and an outlet positioned in fluid communication with the flow path for discharging filtered waste water from the chamber. The chamber may include a sequential flow path disposed substantially vertically or substantially horizontally. A sequential flow nitrification drain field for filtration treatment of waste water comprises a source of waste water, and at least one sequential flow filtration chamber. The source of waste water for the drain field is preferably a septic tank. The drain field may comprise a plurality of chambers connected in fluid communication.

Abstract: An apparatus and method for treatment of waste water effluent includes a main conduit connected to a source of waste water, and a removable filter positioned within the main conduit, the filter comprising a light weight particulate material for filtration of the effluent. A drain field for filtration treatment of waste water effluent comprises a source of waste water effluent, a main conduit in fluid connection with the source of waste water, and at least one in-line filter positioned within the main conduit, the filter comprising light weight particulate material. The drain field may comprise at least one extension conduit connected in fluid communication with the main conduit and extending substantially upwardly therefrom, said extension conduit having a removable cap comprising a sensor to thereby generate a signal when water in said extension conduit reaches a predetermined level.

Abstract: The invention describes a filter container, system and method for filtering sewage effluent from a septic tank. The filter container includes a body having a lower end and an upper end, having walls forming a floor positioned at the lower end and sides connected to the floor and positioned to define an inner cavity extending from the lower end to the upper end. The body of the container has a mouth opening positioned at the upper end to provide access to the inner cavity. A lid is positioned on the upper end of the body so as to cover the mouth cavity to thereby close the container. A plurality of pipes connect the container in fluid communication with the septic tank or with another container, the plurality of pipes including at least one inlet pipe for delivering sewage effluent to the inner cavity and at least one outlet pipe for discharging filtered sewage effluent from the inner cavity.

Abstract: An apparatus and method for manufacturing a drainage line unit. The apparatus includes a mandrel having an inner cavity. Rear, upper and front openings communicate with the mandrel cavity. Preferably, a controller connected to at least one sensor is operably positioned to control the apparatus. A pipe feeder feeds perforated vent pipe through the inner cavity of the mandrel from the rear opening to the front opening and therethrough. The pipe is positioned within the inner tube cavity so as to define a void space between the pipe and the wall of the mandrel. A hopper assembly has an exit port positioned for feeding a plurality of plastic bodies into the cavity. A blower produces a sufficient air flow through the mandrel cavity for moving the plurality of plastic bodies to substantially fill the void space so that the pipe emerges from the front opening of the mandrel surrounded by the plurality of plastic bodies.