black tank overflowed, figure out how
First, you're going to love this post because you get to tell me how stupid I was to rent out our beloved 27' Gulfstream Conquest class C, 2004. There's also a mystery and whoever can solve it bef...
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Grey tank got filled and so they tried to open and partially drain it by opening the grey and black valves and equalizing the tanks. with the cap still on the pipe, and did this a couple times with a full kitchen sink the last time that caused the final overflow when it was tried.
