A novel multi-compartment gabion assembly configured for treating stormwater is disclosed herein. In one embodiment, the novel multi-compartment gabion assembly comprises a plurality of adjacently positioned and integrally connected gabion cells that includes at least one regular gabion cell and at least one corner gabion cell. In other embodiments, the novel multi-compartment gabion assembly comprises a wire mesh gabion that has a filter bag conformally positioned within the gabion, wherein the filter bag is made from at least two different water permeable sheet materials.

A novel multi-compartment gabion assembly configured for treating stormwater is disclosed herein. In one embodiment, the novel multi-compartment gabion assembly comprises a plurality of adjacently positioned and integrally connected gabion cells that includes at least one regular gabion cell and at least one corner gabion cell. In other embodiments, the novel multi-compartment gabion assembly comprises a wire mesh gabion that has a filter bag conformally positioned within the gabion, wherein the filter bag is made from at least two different water permeable sheet materials.

An underground water-storage system that includes a sump having a base and sidewalls that cooperate to define an open-topped box that defines a reservoir, a plurality of plastic water matrices each defining a void space for receiving water, and a lid. The sump and lid are formed of a reinforced geomembrane material and include welds and are prefabricated in a location remote from an installation site of the underground water-storage vault more than two days prior to installation.

An underground water-storage system that includes a sump having a base and sidewalls that cooperate to define an open-topped box that defines a reservoir, a plurality of plastic water matrices each defining a void space for receiving water, and a lid. The sump and lid are formed of a reinforced geomembrane material and include welds and are prefabricated in a location remote from an installation site of the underground water-storage vault more than two days prior to installation.

A fitting, and method for mounting the fitting, to a water tank including a wall defining an inlet opening. The fitting comprising a solar shield for mounting to an edge of the wall, the edge defining the inlet opening. The solar shield including a base defining a lower region; at least a first arm extending upwardly from the base, the first arm having a portion that overlies an external surface of the tank when the fitting is fitted to the tank; at least a second arm extending upwardly from the base; and, a solar shield adapted to allow fluid to pass located, wherein the solar shield is adapted to snap fit into the inlet opening when the fitting is fitted to the tank without the use of additional fasteners, joiners and/or adhesives.

A fitting, and method for mounting the fitting, to a water tank including a wall defining an inlet opening. The fitting comprising a solar shield for mounting to an edge of the wall, the edge defining the inlet opening. The solar shield including a base defining a lower region; at least a first arm extending upwardly from the base, the first arm having a portion that overlies an external surface of the tank when the fitting is fitted to the tank; at least a second arm extending upwardly from the base; and, a solar shield adapted to allow fluid to pass located, wherein the solar shield is adapted to snap fit into the inlet opening when the fitting is fitted to the tank without the use of additional fasteners, joiners and/or adhesives.

A plastic tank, comprising a substantially rectangular outer shape having top, bottom, end, and side walls, wherein the side walls comprise alternating depressions and projections, and wherein the depressions increase in depth from top to bottom to decrease internal volume of the plastic tank from top to bottom so that, in use, the side walls resist bulging under internal pressure from water stored in the plastic tank.

A plastic tank, comprising a substantially rectangular outer shape having top, bottom, end, and side walls, wherein the side walls comprise alternating depressions and projections, and wherein the depressions increase in depth from top to bottom to decrease internal volume of the plastic tank from top to bottom so that, in use, the side walls resist bulging under internal pressure from water stored in the plastic tank.

A valve arrangement for selectably directing water to an end user from either a first continuous mains pressure source of water or a second source of water supplied intermittently from a water storage facility by pump means (16), said valve arrangement (10) including a first valve means (44,59) being positionable in an open position permitting water from said first continuous mains pressure source to flow to said end user, said first valve means being movable to a closed position to prevent water flow from said first continuous mains pressure source to said end user, said first valve means being moved to said closed position by water pressure of water supplied from said second source by said pump means, said valve arrangement including a second valve means (23,58) positionable in an open condition or a closed condition, said second valve means being moved to said open condition by water pressure of water supplied from said second source by said pump means as said first valve means is moved to said closed position, said second valve means being movable to said closed condition by said first valve means being moved to said open position.

A valve arrangement for selectably directing water to an end user from either a first continuous mains pressure source of water or a second source of water supplied intermittently from a water storage facility by pump means (16), said valve arrangement (10) including a first valve means (44,59) being positionable in an open position permitting water from said first continuous mains pressure source to flow to said end user, said first valve means being movable to a closed position to prevent water flow from said first continuous mains pressure source to said end user, said first valve means being moved to said closed position by water pressure of water supplied from said second source by said pump means, said valve arrangement including a second valve means (23,58) positionable in an open condition or a closed condition, said second valve means being moved to said open condition by water pressure of water supplied from said second source by said pump means as said first valve means is moved to said closed position, said second valve means being movable to said closed condition by said first valve means being moved to said open position.