A/C drawing air up sink drain.
Whenever we turn on the A/C, it's just a matter of time before the whole RV STINKS. It appears the A/C is pulling air up the waste pipes connected to the double sink. Under one sink there is a drai...
Forum Discussion
Remove the grill from the A/C and look up into it. Is the attic sealed off from the return??? You should not see any insulation or framing for the roof. If it is not sealed off completely, you can draw sewer gases through the attic from the sewers vents in the roof. The vent pipes are not sealed from the roof and just stick up just enough to be covered by the vent assembly.
