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trapped air?

Posted by tomnjan (My Page) on
Sun, Aug 8, 10 at 10:59

I have a single story house with a full basement and sewer under the basement floor. The bathtub on the main floor will back up for a period and then drains faster than the water entering the tub. I suspect that somehow air is entrapped in the system and once enough head pressure is achieved, the system seems to "burp", and flows fine. Any thoughts or known remedies?

Follow-Up Postings:

RE: trapped air?

Clogged or missing vents.

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