I used one of those Valterra valves with great success, from 2016 until now. I noticed today, that what must be the anti-freeze from my black tank has backed up to the point, it is now seeping into the wet bay along with whatever else didn't get flushed out before winterizing dripping through the screw-in floor plug onto my driveway. I need to replace the seal in the valve or the valve itself. How can I access the valve? It is enclosed in a compartment, with no panels inside or outside that are visible. From what I can see, removing the wet bay control panel is not feasible, because of the dump valve cables being fed through it. HELP!
