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.

A hydrostatic tank floor relief valve of a construction described herein provides for equalization of hydrostatic pressure of fluid in a storage tank with hydrostatic pressure of ground water surrounding the storage tank. A high efficiency grate located in a flow channel of the hydrostatic tank floor relief valve blocks debris from entering the storage tank during pressure equalization, yet does not reduce effective flow rates through a flow channel of a given diameter. The hydrostatic tank floor relief valve optionally includes an elastomeric seal surface and a stainless steel seat ring that reduce the likelihood of particulate matter disrupting valve operation, and provide a more reliable seal.

A device for detecting the presence of hydrocarbon fluid in runoff water includes an outer canister and a cartridge situated within the outer canister. The cartridge includes a pre-filter, at least one containment vessel, a diffuser/separator member situated within the containment vessel, a hydrocarbon fluid accumulator and an electronic circuit. The diffuser/separator member slows the flow of runoff water entering the containment vessel so that oil in the runoff water separates from and rises to the surface of the water where it accumulates in the hydrocarbon fluid accumulator. A sensor situated in the hydrocarbon fluid accumulator detects the accumulated oil and sends a signal to the electronic circuit which, in turn, closes a valve and prevents water from flowing through an egress opening in the outer canister.

A temporary sediment retention assembly for removing sediment from storm water entering an inlet of a storm water drainage system can include a substantially rigid frame and a cover. The cover can include a cover material that includes one or more sections of filter materials. The sections of filter materials can be substantially integrally formed or can be connectable together, and form or define a covering or cap that is adaptable to fit over and substantially cover the frame of the temporary sediment retention assembly for retaining or filtering sediment and debris from water flowing through the temporary sediment retention assembly and into the storm water drainage system.

The embodiments of the present disclosure provide an in-line surface drain. The in-line surface drain may comprise a cylindrical frame and a plurality of concentric rings coupled to the cylindrical frame. The plurality of concentric rings may be configured to protrude outward from a bottom external surface of the cylindrical frame, and the diameters of the plurality of concentric rings may be different. At least one of the plurality of concentric rings may be configured to detachably accommodate a riser pipe.

An apparatus for controlling fluid flow, including a temperature sensitive material, having a first physical property at a first temperature and a second physical property at a second temperature, a device for controlling fluid flow, and a device for connecting the temperature sensitive material to the fluid flow control device. The connecting device may be configured so that the fluid flow control device is in a first position at the first temperature and in a second position at a second temperature. The temperature sensitive material may be aluminum wire or stainless steel wire. The temperature sensitive material may have the shape of an Archimedean spiral. The connecting device may be a motion amplifier. The first temperature may be a cryogenic temperature.

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.

An apparatus for controlling ingress and egress of biologically transmitting insect species to standing water disposed within a stormwater treatment and water storage system.

A drain protector (1) is provided which has a conformable bottom frame (3) having a central opening that is closed by a filter element (4) spanning the opening. The filter element is capable of removing silt from water on a building site. The bottom frame is capable of conforming to the surface terrain around a drain opening due to the compressive weight of the drain protector in-situ. There is a porous top frame (2) that provides additional separation for debris from silted water and also provides compression weight for the bottom frame. The drain protector (1) may be removed, cleaned and reused.

An apparatus and method for an intake-end siphon flow regulator that allows for continuous operation in container liquids with entrained gases. A float actuated valve opens and closes as needed so that the siphon draws in container liquid. The float valve mechanism uses magnets that provide for a continuous valve cycling. This cycling overcomes gas build up that typically causes the siphon to fail. By disallowing extended periods of relatively low flow and pressure, the siphon builds up less gas bubbles that obstruct siphon operation. When the liquid rises enough, the float's buoyancy overcomes the magnetic attraction and the valve completely opens. The highest flow possible occurs and washes gases downstream. As the container liquid draws down, the magnets draw closer and when their magnetic fields interact, the magnets are drawn together, completely closing the valve. As liquid again enters the container, the aforementioned cycle repeats.