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Episode 28 – Separation of Gas and Liquid – Traps and Vents.

In this episode I talk a little about basic plumbing of drains.   The purpose of a trap is described and the problems that changes in pressure in the drain line can cause.  Siphoning is discussed and how different pressures in the drain pipe can cause water in the trap  to be drawn out an allow sewer gas to enter the house.

I tell the story of some bad advice we received from a plumber, but also how we coped with the bad advice and came up with the right answer.

As a reference a manual for one of the Air Admittance Valve is linked so you can download the information and see the problem described from a different point of view.

Some other examples of traps are also discussed.







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