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How do you fix a second floor bathroom leak coming from the bathtub water valve when turned on when water is dripping through the fan vent to the bathroom below creating a wet spot on the floor?

In: Plumbing [Edit categories]

Answer:

Fixing a leak

You should first check fan vent outlet on roof - should have a flapper of some kind that may be stuck open or have a hole in it. If it only leaks when it is raining that is first clue. One other possibility is the vent pipe is running through cold attic causing condensation - you can wrap vent pipe with insulation to solve that one . Shorten distance of fan vent, too much condensation to evaporate before running back to fan.
More input from FAQ Farmers:

It isn't possible to fix a leak unless you know where the leak is coming from. It could be from the bath, basin, radiator, toilet. We need more information.

Contributor:

Neila222

First answer by Neila222. Last edit by My442. Contributor trust: 11 [recommend contributor ]. Question popularity: 223 [recommend question].

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