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Any empty tank is really a tank full of air. If you want water to go into a tank or pipe or drain then you have to allow the air to escape out of it. We allow the air to escape through a "vent pipe," connected to the tank. When refering to septic tanks, this pipe is called a "septic tank vent." Unless we use a zeocarbon filter on the "septic tank vent", the vile air coming out smells like a combination of rotten eggs and ammonia. Some septic tanks are upgraded to include aeration systems where electric or solar powered aerators bubble air into the liquid in the septic tank. Although these systems treat water faster and produce cleaner treated wastewater you still need a "septic tank vent," to let the air escape from the tank so water can go into it.

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The vent is needed in order to release gases, which build up from the work of micro-organisms that assist in breaking down fecal matter. Otherwise, the pressure from retained gases could increase, and the tank could rupture.

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Q: What is the purpose of the Septic tank vent?
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Related questions

Find a septic tank vent cap?

They don't all have vent caps.


How do you unclog a vent pipe on a septic and well?

There is no single vent pipe on a septic and well. ( -Or if there is, someone has made a colossal and dangerous error. ) - If the vent on your septic is clogged, then your tank is way past it's time to be pumped out, and that MUST happen before you clean the vent.


What would cause an intermittent septic smell outside over a septic tank without a vent and green leach fields?

Tank is full. Lid is not sealed.


Where on the septic tank do you install a septic tank vent?

The "septic system vent" you are referring to is not actually attached to the "tank" (that would be the buried, holding chamber in your yard) at all. It is attached to the plumbing in the residence before the septic system. If you look at the HowStuffWorks page, you will find a diagram showing where/how the vent works. Due to the way the septic tank produces gases, caused by the breaking up of the bacteria in the tank. Filters and drain traps are put into the houses plumbing system that is designed to hold water in the lower loop and block the gases from flowing back into the house. Most houses on a septic system will have the vent pipe(s) on the roof of the house and this is where these gases are released, rather than going back into the house. Now obviously, if you have gases coming into your house, you got a problem and should definitely consult a plumber


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What I have to say would be the easiest thing to do would be just to put your hand in a glove, and then the glove into the Septic Tank.


What is the purpose of a septic tanks?

The vent is needed in order to release gases, which build up from the work of micro-organisms that assist in breaking down fecal matter. Otherwise, the pressure from retained gases could increase, and the tank could rupture.


How effective is a septic tank?

it upon the material used to build the septic tank


How to Clean a Septic Tank?

An overfilled septic tank can cause backups in a sewer line, causing many problems in a plumbing system. If a septic tank has overflowed, it is usually clogged with excessive organic debris. A septic tank cleaner can be a good first step when treating a septic tank overflow. Septic tank cleaners contain natural bacteria and enzymes, designed to break down organic material in human waste. Excessive disposal of bleach and detergents into a septic line can kill these bacteria, preventing the breakdown of septic waste in a tank. If a septic cleaner doesn't clear a tank after a week, it may be necessary to use a professional septic tank cleaning service.


Your septic tank is drained out your shower is backed up with sewageHow do you fix it?

Unplug the pipe between house and septic tank first. Get flow of septic into the tank.


Can you use Mr clean in septic tank?

Floors mr. clean septic tank


How do you do a septic tank cleaning?

To do a septic tank cleaning you must open the tank, have means to get the waste out, and have a place to put it. This can usually be done with a septic truck which has a tube which will suction most of the waste from the tank.


When was The Woman in the Septic Tank created?

The Woman in the Septic Tank was created on 2011-07-15.