Grey tank to black tank crossover
Our 2 black tanks hold twice the size of our 1 grey for some unknown reason. 78>38. Yes those are the numbers. Has anyone made some type of connection so the grey starts to get full, the flow will fi...
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An extra valve would have its benefits. I only have a small travel trailer. The black tank is connected directly to it's dump valve, and the gray tank has only a short 6" section of pipe before its dump valve, then both valves tie directly into the bayonet fitting. There's simply no extra piping to install any third valve, unless I want it sticking out from the side of the RV.
