Valterra Bladex 3" waste valve
I have to replace the dump valve for my black tank. It looks like a fairly simple job. There are 4 bolts keeping it in place. I have a new one but the problem is the 2 rubber seals that came with it. ...
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I'd suggest to use a plumber's grease for seal placement and lubrication. Depending on the seal material, Vaseline can swell the seals.
