Forum Discussion

BFL13's avatar
BFL13
Explorer II
Jul 01, 2020

Black Tank Roof Vent and Bathroom Roof Vent Too Close?

In the TC (see sig) there can be a whiff of tank smell that apparently comes from the open roof vent by way of the tank vent nearby, but not positive that is the source. It is not coming from the to...
doxiemom11's avatar
doxiemom11
Explorer II
Jul 02, 2020
Are you sure it's not coming from the air admittance valve under the bathroom sink? They do wear out and will allow tank fumes into the rv. The grey smells as bad as any black. They are usually 2 or 3 of them in your plumbing. About $25 at any big box stores. Try that first.

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