Quote:
Originally Posted by big piggy
Sink drain problems : When run bathroom sink, you hear a gurgle sound coming from the kitchen sink. Also if run kitchen sink water will build up (double sink) in the other side. Replaced air valve in vent pipe. Did drop trap in line was ok. Is it safe to put drain-o in the drain pipes then flush?. Was also told possible problem with outside vent pipe, possible wasp nest or what ever. WHAT NEXT ??
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Sounds to me like a lot of semi-clogged traps.
Good news is two-fold. 1) In coaches of our vintage you’ve almost surely got a standard P-trap in each line; there won’t be a Hepvo valve making your life complicated. I would stay away from Drano (too easy to get an over-concentration). I use the Walmart house brand liquid plumber. Two jugs split among the three drains, leave it overnight, then flush in the morning. 2) If the liquid plumber doesn’t clear it thoroughly you can physically reach all the P-traps, disassemble, and clean them manually. Messy, but not at all difficult, and you’ll know the pipes are clean.