Systems and methods for a ground water filtration system are described. The ground water filtration system includes paver blocks designed to facilitate liquid seepage between the paver blocks and to route the seepage to a preferred area. A filter may be utilized to remove undesired particulates in the seepage prior to routing. The ground water filtration system additionally provides at least one layer of stone to facilitate flow direction of the seepage. At least one geogrid fabric is also provided to further enhance ground water filtration.

A storm water drain system and methods of assembling the same are provided. The system can be arranged to provide a water management function such as retention, detention, conveyance, or infiltration. The system can include a plurality of support modules positioned adjacent to one another to form a top deck, a bottom deck, and an interior space between the top deck and the bottom deck. The plurality of support modules can include a support module that has a bottom corbel extending from an outer surface of the support module. The bottom corbel can be located within the interior space and have a surface that contacts a portion of the bottom deck.

A prerotation basin for use in a sump pit or wet well includes a basin body having an upstanding exterior wall, an interior concavity for placement of a pump inlet therein, and a fluid entry channel formed in the basin body defined by a discontinuity in the upstanding exterior wall, where the fluid entry channel has a channel floor, the threshold of which is at an elevation that is equal to or lower than the elevation of the bottom surface of the interior concavity. The prerotation basin thereby provides a channel floor that slopes upwardly toward the bottom surface of the interior concavity to provide better solids entrainment in fluid being processed from the sump pit or wet well, and to provide self-flushing of the basin.

A modular fluid retention system and method for exemplary uses collecting and temporarily retaining fluids, for example stormwater run-off. One example of the system includes a plurality of modular retaining units which are selectively connected together to form an interior chamber volume for collecting stormwater run-off directed into the chamber volume. A plurality of modular trays are engaged with portions of the respective retention units to prevent relative movement of the retention units and eliminate, or substantially reduce, the need for porous material to be installed in and around the retention units greatly increasing the excavation void space usable for water collection and retention. In an alternate application, only a plurality of modular trays are used as the vertical support and fluid retention volume structure for the fluid retention system.

A modular fluid retention system and method for exemplary uses collecting and temporarily retaining fluids, for example stormwater run-off. One example of the system includes a plurality of modular retaining units which are selectively connected together to form an interior chamber volume for collecting stormwater run-off directed into the chamber volume. A plurality of modular trays are engaged with portions of the respective retention units to prevent relative movement of the retention units and eliminate, or substantially reduce, the need for porous material to be installed in and around the retention units greatly increasing the excavation void space usable for water collection and retention. In an alternate application, only a plurality of modular trays are used as the vertical support and fluid retention volume structure for the fluid retention system.

A fluid collection and retention system is provided. In some embodiments, the system is integrated with and comprises a retaining wall structure, and the retaining wall structure forms at least a portion of an enclosed volume of a module for collecting and storing fluid. Various features of a fluid retention module and related supporting structures are also provided.

A fluid collection and retention system is provided. In some embodiments, the system is integrated with and comprises a retaining wall structure, and the retaining wall structure forms at least a portion of an enclosed volume of a module for collecting and storing fluid. Various features of a fluid retention module and related supporting structures are also provided.

A prefabricated former for an underground pump station comprises: a floor former; a plurality of vertical support elements; a side wall secured to and surrounding the plurality of vertical support elements, the side wall having an inner layer and an outer layer defining a cavity therebetween, and an opening at an upper end of the side wall in communication with the cavity for receiving concrete, the side wall extending both above and below the floor former for defining a space above the floor former and a space below the floor former, and an opening being provided between the cavity and the space below the floor former enabling concrete to flow through the cavity and into the space below the floor former; when set, the concrete forming a unitary wall and base.

Machine for emptying, washing and sanitizing of the portable tanks used in the toilets of recreational vehicles (for example, campers, motor homes, caravans and boats), characterized by a structure widi sliding door, in which the tank is inserted; the machine comprises sensors capable of detecting the type of the tank inserted. The washing procedure starts by rotating the pour-out spout, unscrewing the lid and lifting the tank into a vertical position, thus emptying it into the drainage system. A coupling mask then automatically slides open the lid and opens all the valves and sealing plugs. A lance then injects water and detergent at high pressure inside the tank, thus washing inside. The machine then washes the outside of the tank and of the cap of the same, filling it widi sanitizing liquids, drying and re-delivering it to the user through its completely automated, electronically-controlled method thus guaranteeing hygiene and safety. The machine provides for direct connection to the sewerage system or to a collecting tank and backup systems for electricity and water supplies.

A system and method for an underground stormwater storage system which may comprise a pit, a structure, and a liner. The structure may be disposed within the center of the pit and surround by the porous backfill and wherein outlets are disposed on the crown of the structure. A liner may form the outer layer of the pit. A method for releasing stormwater may comprise capturing stormwater from a surface, containing the stormwater within a structure, releasing a volume of the stormwater from the structure and draining an additional volume of the stormwater from the crown of the structure from an outlet when the structure is capturing more stormwater than it is releasing.