Gray Water not empty, only 1 gate valve
2007 six-pac D650 cabover, do you have any information regarding the 38 gal gray water tank, I have only one gate valve for the black water holding tank, the gray water tank does not have a separate ...
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Don't have a truck camper but I'll bet one valve serves both tanks. Can you hook up the dump hose, open the valve and then turn on the sink? Then either listen for water running in the hose. Or pick up the middle of the hose and see if the hose starts filling with water.
