Quote:
Originally Posted by Old and soft
Have heard a few people say their tub pan is not properly supported, which allows a leak around the drain when the bottom of the tub flexes when weight is applied. Tub flexes, but the drain plumbing does not.
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Same thing happened to a co-worker. He ended up spraying a large quantity of spray foam under the tub, which cured the flex problem.
Hopefully he never needs to access that area.....