Waste Valve Always CLOSED or Always OPEN?
Research, Previous Owner, & 1 or 2 RV Owner's I happened to ask: Conclude and Advise me to ALWAYS LEAVE WASTE TANK CLOSED till she fills so the Tank can build Gravity for BOTH the dirty waste and sem...
Forum Discussion
While camping you can leave Grey valve open and Black closed. I close my grey 1 day before I dump just to clean the lines and hose with the grey water. If you keep the black water open all the solids with accumulate to the bottom of the tank and you will have a problem getting it out. Also, if you have the tools or a hose rinse the black tank out well.
