A: For waste water to properly drain, there must be air behind the water which requires a plumbing vent above the roof. In some instances, an automatic air vent or air admittance valve can be used ...

I really enjoyed the challenge of the three-dimensional problem-solving you have to do to run all the drain and vent pipes in a typical home. I wondered how it all worked and was lucky enough to ...

The main drain pipe under the basement floor got clogged ... That’s a vital part of your plumbing system. It’s a vent pipe. You may have more than one. Many homeowners think plumbing vent ...