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An air admittance vent is a mechanical sewer vent which allows air to enter into the sewage system but does not allow exhaust of sewer gases.

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9y ago

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What are the different options available for toilet venting?

The different options available for toilet venting include using a vent pipe that connects to the plumbing system and extends to the roof, using an air admittance valve that allows air to enter the plumbing system without the need for a vent pipe, and using a mechanical vent that uses a fan to help remove odors and gases from the plumbing system.


What is the open pipe in the middle of the plumbing for your double sink with dw and disposal that sometimes backs up and spews all over under the sink and is it correct or required?

It could very well be an "Air admittance valve." Plumbing systems require a smooth flow of air and water to operate properly, these vents historically were routed through the roof and allow for the relief of positive and negative pressures in the vent system. "Air admittance valves" are installed under sinks and lavatories that are inconvienient to route a vent to the roof. These vents while handy do not respond well to back pressure, they are designed to seal during moments of positive pressure and "breathe" while in moments of negative pressure, this is to prevent sewer gas from entering the room. The purpose of the trap is to prevent sewer gas from entering the room, the purpose of the vent is to relieve positive and negative pressures in the drain and vent system to prevent trap seal loss. The slang name for an "air admittance valve" is studor vent. "Studor" is a manufacturer of AAV's Hope this helps


Can you vent air into a sewer vent pipe?

No. You vent air from a sewer line.


Sewage line cheater vent?

Im not familiar with the term cheater vent. Perhaps you are referring to an Automatic Air Vent or Air Admittance Valve? They are installed per the manufacturers reccomendations. Some municipalitys around the US recognize these, but do not allow them. They work on the basis that once installed if there is negative pressure in the waste arm from the act of water being flushed through the p-trap and down the waste line they allow air to be entered into the system to protect the trap seal. Masterx3


What is the purpose of an air admittance valve in a toilet system?

An air admittance valve in a toilet system allows air to enter the plumbing system, preventing negative pressure that can lead to slow drainage or gurgling noises.


Install air admittance valve?

I would install an AAV if


What is the purpose of an air admittance valve under the sink?

An air admittance valve under the sink is used to allow air to enter the plumbing system, preventing negative pressure and helping to maintain proper drainage flow.


What is the recommended installation height for an air admittance valve?

The recommended installation height for an air admittance valve is typically between 4 to 6 inches above the highest point of the fixture it serves.


What is the easiest way to plumb in an island sink drain knowing that you need a vent?

You can use either a "Chicago Loop" to take care of the vent problem. Details can be seen here: http://en.wikipedia.org/wiki/Chicago_Loop_%28plumbing%29 Or another way is tio install an air admittance valve (available at Home Depot).


How is vent used in a sentence?

the air vent is cold


What is an air vent?

An air vent is an opening, sometimes covered by a grate, which allows air to circulate around a room.


How to install toilet air admittance valve?

put it on ya stink pipe