sink drain piping
Our new kitchen sink installation doesn't drain properly. After the two drains empty and pass thru' the trap, it rises 2" before heading downward to the main stack to exit the building (see image right side of centre) . Is this legal ? How can it be easily fixed since everything is hidden in the wall ? The contractore says it's okay.
read more and respond »Posted 3 years ago by rick in Plumbing
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