A receiving element for a screw-type shower tray valve, for insertion into a continuous outlet opening of a shower floor panel, having a first flat side and a second flat side directed away from the first one, an annular body that can be inserted from the first flat side into the outlet opening and that bears with its bearing collar on the first flat side of the shower floor panel, the bearing collar merging into an inclined profiled wall of the annular body and running out into a cylindrical inner wall, and a support flange that can be inserted from the second flat side of the shower floor panel into the outlet opening and that bears with its bearing collar on the second flat side of the shower floor panel. The wall of the annular body and the support flange each has at least one circumferential rib.

A combined inspection gully trap and gully dish apparatus is provided. The apparatus has a gully trap housed within a gully dish. The apparatus is arranged such that when in use liquid can flow into a gully dish inlet and into the trap which is arranged such that it partitions the dish into a liquid inlet section and a liquid outlet section, and wherein the liquid in the trap creates a seal between the two sections.

Systems, devices, and methods for providing nutrient removals in an up flow filtration storm water system for treating water to very high clean levels using filtration media. A filtration media can be supported by a screen above a floor in a vault allows for incoming storm water to pass into a void space above the floor into the screen and filtration media and then out an outlet to the vault. The filtration media can include recyclable and/or natural particles. Layers of river rocks can be placed on top of and below the filtration media. The captured debris can drop to the floor. The long lasting filtration media can be cleaned by being backwashed.

A system and method for inserting removable drain valve within an inlet opening of a drain basin and then sealing the drain valve within the drain basin. The removable drain valve has a cylindrical housing with a check valve disposed with an outlet of the drain basin to allow drain water to flow out from the outlet of the drain basin while blocking flow from the outlet of the drain basin to the inlet of the drain basin. A cylindrical expander band having first and second ends spaced from each other is disposed about the cylindrical housing. A cylindrical gasket is mounted about the cylindrical housing and the cylindrical expander band. A paddle lock lever is pivotally mounted within the cylindrical housing. The paddle lock lever has an expander head to expand the cylindrical expander band and cause the cylindrical gasket to expand and seal against the drain basin.

A high flow drain cover assembly for a water feature is provided herein. The drain cover assembly can be interchangeably used as an open flow system or as a grated flow system. The drain cover assembly has a concave upper sump cover adapted to seat a surface finish so that the visual appearance of the drain cover assembly matches the surround surface into which the drain cover assembly is installed. The base of the drain cover assembly is shaped to reinforce the cover and define flow paths that allow flow rates of over 300 gallons per minute to pass through the drain cover assembly.

A valve device includes: a hollow member having a through-hole with an axis, an internal surface delimiting the through-hole, a peripheral surface delimiting the hollow member's transverse extent with respect to the axis, and at least one deformation zone deformable to reduce the transverse extent when compression forces act on the peripheral surface, the deformation of the deformation zone moving the hollow member from a rest to a use state, and at least one closure portion extending radially from the hollow member inside the through-hole up to a respective free edge, in contact with the internal surface of the hollow member and/or with at least one free edge of another closure portion occluding the through-hole when in use. The at least one closure portion includes a flexible membrane, foldable when subjected to a fluid and/or solid pressure which moves in the through-hole along the axis, thereby defining a passage.

An adjustable floor drain apparatus includes a housing configured for positioning adjacent a drain pipe, manhole riser, or other feature, a leveling frame configured to be positioned at least partially above the housing, a grate configured to be positioned at least partially above the leveling frame and secured to the leveling frame, and a leveling member. The leveling member can be configured such that actuating the leveling member adjusts the position of the grate relative to the housing while the leveling member remains fixed relative to the housing. The leveling member can be configured such that actuating the leveling member moves the leveling member relative to the grate and adjusts the position of the grate relative to the housing.

A stable and variable design of a drainage structure includes a drainage body (11) and a cover (20). The cover (20) has engagement devices (13, 13′; 14, 14′; 23, 23′) when seen in a longitudinal direction of the drainage body (11), whereby the cover connects upper edges (12, 12′) of the drainage body (11) to one another transversely to the longitudinal direction in a tension-resistant manner over the entire length of the drainage body. In order to allow the use of different covers (20) for different loads, for example while using the same drainage body (11), two types of engagement devices (13, 13′; 14, 14′) are provided on the drainage body.

A stable and variable design of a drainage structure includes a drainage body (11) and a cover (20). The cover (20) has engagement devices (13, 13′; 14, 14′; 23, 23′) when seen in a longitudinal direction of the drainage body (11), whereby the cover connects upper edges (12, 12′) of the drainage body (11) to one another transversely to the longitudinal direction in a tension-resistant manner over the entire length of the drainage body. In order to allow the use of different covers (20) for different loads, for example while using the same drainage body (11), two types of engagement devices (13, 13′; 14, 14′) are provided on the drainage body.

The present invention relates to a device (1) for filtering storm water inside a storm drain. The device (1) comprises a filter unit (2), a metal capturing ballast unit (6), and a floating carrier (4) for carrying the filter unit and the metal capturing ballast unit (6). Whereby, in use, the device (1) is arranged in a floating condition in the storm water of the storm drain. The filter unit (2) is at least partially arranged above a surface (5) of the storm water, and the metal capturing ballast unit (6) is arranged below the surface (5) of the storm water. The metal capturing ballast unit (6) comprises a solid material for capturing metal and providing ballast.