Grey and Black Dump Valve Handles
We are buying a 2016 Shasta Revere 29 QB and noticed that it only has one dump T handle that appears to be for the black holding tank. The specs state the unit has one 45 gallon grey and one 45 gallon...
Forum Discussion
Try dumping a couple of gallons of water in the grey tank, then open the valve and see if it drains. If yes, try the same with the black tank. It wont solve "why?", but it would at least confirm your drain process.
