Ever have trouble getting a fiber washer to seal completely or stay in place while you are installing it? Our Ask Caleffi team takes a lot of calls in this regard. Letting the fiber gasket soak in water is a super simple technique to optimize the seal in order to prevent leaking. Watch as "Hot Rod" demonstrates:
August 14, 2014
Fiber Washers: Installation tips to help prevent leaking
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Great tip. I wish I would have seen that sooner.
I have tried this tip of soaking washer. It still leaks. This is a on a backflow preventer. Leak is very slight. Size of a quarter overnight. What do I do now? running out of washers. Very frustrated. Can
Bob,
Are you over-tightening? These fiber washers will seal properly when nice and snug but you don't want to crush them. Also, make sure the metal surfaces on the valve body and tailpiece are clean.