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[fairfieldwizard]

Originally Posted by Oldchief

Again, thanks for your informative reply.
My 1 1/2" gray water valve & holding tank pipe connection isn't via a rubber coupling. There's a small collar on the gray water dump valve that connects to a flange on the gray water pipe. These are connected with a rubber gasket seal and tightened with 4 stainless steel bolts. No problems, so far, with the gray water side of the system. I noticed while disassembling the valve assembly today, there appears to be enough 'wiggle room' to correct any potential alignment problems. Rather than using ABS cement, I plan to wrap this joint with silicone emergency plumbing repair tape that bonds, even to wet surfaces, and solidly fuses to itself. It makes a pretty strong joint and ads say it can hold over 700 psi pressure, so it should work well in this application. Taping the joint could be done after everything is fitted together and aligned, etc., and the tape would certainly be more forgiving than ABS cement. Guess I'll find out.

Used the same kind of tape to stop a drip at the same spot on my 2014 Hurricane. You're just getting ahead of the game.