Plumbing Problem

Old 07-16-06, 05:34 AM
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Question Plumbing Problem

I recently had a new house built . The house has 2 bathrooms all on 1 floor. Each also has its on vent pipe.
After using the toilet for 3 to 4 days water bills the bowl to within 2 inches of the rim and stops. It slowly drains out to a level of 3 to 4 inches . If I turn on the sink it bubbles up air thru the toilet. Tub which is sharing the same wall as the toilet tends to flow slightly back into the tub.
Is it possible the problem could be in the vent as well as the lines. Builder has snaked thru vent twice and says it should be ok, but nothing after a few days.
This on septic tank also.
Thanks, cwalls
Old 07-16-06, 05:54 AM
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It is highly likely the plumber, when he went to install the toilet, dropped the knock out plug from the toilet flange into the hole. It happens, and hopefully it hasn't gone too far downstream so it can't be reached. You can't snake it out. and the vent pipe should not be plugged this early in life unless, likewise a cap was allowed to fall into the vent. Time for builder to pull fixtures and check it out.
Old 07-16-06, 06:07 AM
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I agrre with Chandler that the contractor is responsible. Most new homes come with a one year contractors warranty. You should not have to live with this problem for a year though. It would appear that it is a vent problem since the toilet does not overflow and you have the bubbling. drainage systems need air to operate correctly. The vent(s) are the source of this air. When new piping systems are inspected, many States require the Plumber to plug the vents for the test. A test plug or cap may have gotten dropped into the line and is blocking either the vent or the main drain. Bottom line is that the Contractor is responsible for fixing it. Good luck.

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