2nd post. Blocked bathroom sink seems clear to stack and beyond.?
if clear @ stack, can in 1 of 3 places. first may blocked @ "t" fitting behind wall inside cabinet. second may in "p-trap" itself. third may in drain tube directly under sink. suggestion remove p-trap , clean out. next inspect (from inside cabinet looking upward) through drain tube, , clean out. third clean out waste line @ 1 1/2" t fitting behind wall. last 1 may require snaked out if actual problem.
bathroom sink returning water. pipes clear stack , stack draining water when full on hosepipe put wall stack itself. mean blockage in room vent?
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