Report Air Blowout, Winterize Kit, or Both? in General RV Information Posted September 27, 2017 If you have a black tank flush, there will probably be water trapped between the hose connection and backflow preventer valve.
Air Blowout, Winterize Kit, or Both?
in General RV Information
Posted
If you have a black tank flush, there will probably be water trapped between the hose connection and backflow preventer valve.