A drain assembly that is installed at and against the wall of a shower stall providing an inlet along the intersection of the wall with the floor, and the methodology of installing the drain assembly are described. In at least some embodiments of an installed configuration, only a thin slit along the wall/floor intersection is visible in a finished shower enclosure.

A one-piece shower base includes a pitched bottom surface, a plurality of vertical flanges extending upward from a plurality of outer edges of the one-piece shower base, a drain integrated within the one-piece shower base, and a pitched foam support base having an upper surface and a lower surface. The pitched bottom surface is pitched downward in at least one direction toward the drain. The upper surface of the pitched foam support base is adhered to an underside of the pitched bottom surface. The pitched foam support base fills in a hollow space below the underside of the pitched bottom surface created by the pitch of the pitched bottom surface.

A system for capturing and destroying hair and waste within a shower drain includes a basket placed in the drain which holds a rod including an enzyme blend. The basket captures hair or waste that is washed down shower drains The enzyme blend neutralizes the hair or waste. The result is a clear drain and clear plumbing, with minimal manual labor. The basket does not require removal because the hair and waste are neutralized before a clog can develop. The enzyme blend is safer for both users and the plumbing systems treated than conventional drain cleaning chemicals.

Provided is a non-point pollutant source treatment apparatus. The non-point pollutant source treatment apparatus includes an inlet pipe for allowing initial polluted rain (raw) water to flow therethrough, a settling tank coupled to the inlet pipe and storing raw water flowing from the inlet pipe, a drain part disposed at one side of an inside of the settling tank directly under the inlet pipe, and coupled to a drain pipe so as to discharge raw water contained in the settling tank into the outlet pipe, a purifying member disposed at the other side of the settling tank and including purifying plates with inlet holes, a filtering part coupled to an upper portion of the settling tank and filtering foreign substances from raw water, and a backwashing tank coupled to an upper portion of the filtering part and including a purified water pipe.

In one representative embodiment, a trench drain comprises first and second end portions, a channel portion extending longitudinally from the first end portion to the second end portion, a continuous, unobstructed slot portion extending from and in fluidic communication with the channel portion, wherein the slot portion and the channel portion form an internal flow passage, and at least one gusset coupled to the slot portion and the channel portion and disposed external to the internal flow passage.

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.

A low profile drain includes a first extrusion channel extending lengthwise in a first direction, a second extrusion channel extending lengthwise in the first direction, and a connection channel extending lengthwise in the first direction. The connection channel is configured to interlock with an end of the first extrusion channel via a first interlocking mechanism, and interlock with an end of the second extrusion channel via a second interlocking mechanism. The first interlocking mechanism includes at least one first angular protrusion disposed on the first extrusion channel, and a first angular recess disposed on the connection channel. The at least one first angular protrusion is configured to interlock with the first angular recess.

A filtration system having a malleable compartment and a handle. The malleable compartment has a permeable fabric forming an exterior of the malleable compartment. The exterior at least partially faces a contaminated fluid. The permeable fabric has a pore size that defines the permeability of the fabric. The malleable compartment also has an interior that holds an interchangeable microfiltration medium. The microfiltration medium has a pore size that is smaller than the pore size of the permeable fabric. The filtration system also included a handle that is affixed to the malleable compartment.

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.

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.