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.

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.

An elevator trench drain includes a trench and a drain passageway. The trench has a base wall with peripheral side walls extending upwardly therefrom to define a trench volume therein. The drain passageway extends downwardly from the base wall of the trench and places the trench volume in fluid communication with a lower opening of the drain passageway. The drain passageway has a first section proximate the base wall defining a first cross-sectional area and a second section distal the base wall defining a second cross-sectional area. The second cross-sectional area is less than the first cross-sectional area and this reduction in cross-sectional area produces a head pressure that increases the flow out of the lower opening.

A modular room includes a floor having an upper surface, and a lower surface. The floor defines a floor height between the upper surface and the lower surface, and the floor defines a through aperture. At least three walls have a lower end connected to the floor and an upper end extend away from the floor, a ceiling is connected to the upper end of the walls, and a drain body is positioned in the floor aperture. The drain body has an upper surface and a lower surface and defines a drain body height between the upper and lower surfaces. The drain body height is less than the floor height, such that the drain body does not extend above the upper surface of the floor or below the lower surface of the flow while the drain body is positioned in the aperture in the floor.

An elevator pit having a waterproof cement floor and method for installing the same. The elevator pit includes a jack casing and a drainage pit installed within the elevator pit. A trench is formed in exposed ground surface and defines a channel having a first end positioned at an area that is susceptible to water accumulation within the elevator pit and a second end terminating at the drainage pit. A perforated conduit extends within the channel with an end terminating at the drainage pit. A layer of gravel is disposed over the exposed ground surface and trench at a predetermined height to cover the perforated conduit. A layer of waterproof cement is provided over the ground surface at a predetermined height to cover the gravel, channel and perforated conduit to form the waterproof cement floor which extends across an entire periphery of the elevator pit.

A drain has a cup with a fluid outlet to be connected to a conduit, wherein the cup accommodates a water trap. The cup has an axial channel along the circumference, the channel is open upwards and limited by a bottom, a channel wall and a cup wall. The drain further has a circumferential drain wall adapted to fit into the channel, whereby the drain wall is arranged axially movable in the channel, a casting framework arranged releasable around the outer circumference of the drain wall, the framework has a radial extension, and the drain wall has an outward radial flange at an upper end, the radial extension of the flange is equal or less than the radial extension of the framework. A method and a kit of parts for installing such a drain are also disclosed.

A combination for plumbing fixtures, particularly tiled floors with drains, is disclosed. An exemplary combination includes a substantially planar shower tray bonding disk on a flooring substrate and surrounded by a prefabricated polymer foam shower tray on the flooring substrate and at the circumference of the bonding disk. The disk includes an interior rim that defines a drain opening and a plurality of slotted openings for permitting mortar to penetrate the disk. The drain opening in the disk can thus be positioned at a drain cut out in the flooring substrate.

A drain coupler includes a drain coupler body having a lower opening and an upper opening. A pliable seal is carried by or adjacent the upper opening, the pliable seal operable to form a water-tight seal about an exterior of a metallic throat section of a drain. Coupler engagement structure is carried by the drain coupler adjacent the upper opening of the drain coupler body. Cap engagement structure is carried by a cap. The cap engagement structure and the coupler engagement structure cooperatively enable removable engagement of the cap over the upper opening of the drain coupler body to temporarily cover the upper opening of the drain coupler. The cap is removable to allow insertion of the metallic throat section in the pliable seal.

A through-floor combination tub and surface drain includes an exterior tube having a top end and a bottom end. The bottom end of the exterior tube is to connect to a sewer pipe. The top end of the exterior tube has one or more openings to provide a floor drain. The drain also includes an interior tube situated within the exterior tube. The interior tube has a top end to receive a drain pipe and a bottom end that opens into a cavity within the exterior tube that extends from the top end of the exterior tube to the bottom end of the exterior tube. The drain further includes a flange, extending outward radially from the exterior tube, to connect to a substrate of a floor.

A pipe fitting includes a tubular body comprising an inner surface with a first pipe attachment portion formed of a first polymer material and a second pipe attachment portion axially offset from the first pipe attachment portion and formed of a second polymer material. An outer surface includes a drain attachment portion formed of the first polymer material configured to interface with the drain fixture. The tubular body is reversible such that the tubular body is selectively installable on a pipe member with the first pipe attachment portion located toward a terminal of the pipe member or the second pipe attachment portion located toward the terminal end of the pipe member to sealingly attach the inner surface to the pipe member based on a material forming the pipe member and to sealingly attach a drain fixture to the drain attachment portion.