[folivier]

I just replaced the paddle for the grey water bypass. It wasn't closing fully. So I dumped, undid the screws and it came out pretty easily. The seal looked a little swollen and there was some calcium buildup at the bottom (guess I should eat more salad). Greased the new paddle with silicone grease and installed. Now it works easily. I'll probably pull all 3 seals at least once a year and either replace or at least grease them.
I installed a momentary switch near the curbside dump valve so I can operate it without turning on the ignition. At our winter spot I have to use that side.