When camped at camp grounds do you
Leave your gray or black water valve open? I always leave black tank closed and grey water open until we are going to leave. Meaning a day or two in the grey water tank to flush out after draining bl...
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Closed...we keep the three tanks closed until we need to empty them. We think the flushing action of full tanks will help carry away any food particles that may have settled to the bottom of the galley tank.
