McZippie
Aug 07, 2013Explorer
Bathroom sink bypass drain
DW just has'ta shampoo her hair everyday. She was filling up the waste tank, so modified the sink's P-trap with a valve that can divert waste water to tank or directly to the ground.
TakingThe5th wrote:
You have tapped into your p-trap, which is designed to prevent sewer gases from entering the living space. Your modification drains all the water from the trap, which is liable to raise a stink in a very real sense. The DW might be breathing these gases as she washes her hair. If you continue to leave it open afterward you may be in for some more "surprises".