Cheater Vent Under Kitchen Sink

Check the manufacturer s instructions and local codes to determine the proper height for the aav above the drain.

Cheater vent under kitchen sink.

Pvc sink drain plumbed with a standard vent pipe venting to the roof for standard wastewater drain pipes to function properly in a residential plumbing system there must be adequate venting. In this video i talk about a cheater vent that is sometimes used in plumbing systems. Some communities allow you to vent sinks with an air admittance valve or cheater vent. Air admittance valves aav open and close in conjunction with normal dwv system operation effectively eliminating the need for secondary vent pipes.

Draw vents or cheater vents as they are commonly referred to are often installed by home owners where a wall or ceiling would have to be broken open to run the separate vent pipe to the main stack or where it would necessitate installing another stack as when a new bath is added at the other side of the home from the original. Studor aavs must be installed in the vertical upright position. In new construction this is done by plumbing vent pipes off of all drain lines and running the vent pipes to the roof of the building. Install the pvc drain line the sanitary tee and the p trap for sink.

Cheater vent tee female threaded adapter 90 degree elbow primer cement saw. If your drain gurgles runs slow or hisses the problem may or may not be your check vent. Sometimes called a cheater valve or a studor vent a spring loaded aav opens when waste water flows down the drain and closes again when the water stops flowing thus preventing sewer gases from. The vent shall connect to the drain vertically to maintain an unobstructed opening in the piping to the studor aavs.

A maximum deviation in either direction for plum of 15 degrees is allowed. Locating the valve in a sink or vanity cabinet is acceptable. A cheater vent is often referred to as an air admittance valve and is. The appropriate coupling for the aav glued or threaded attaches to the tee.

How to install a cheater vent supply list.