After Lady Bug mentioned the issues she was having with cold weather, I thought I would share how I winterize the water pumps in the hardside camper and travel trailer.
This little hose fits on both sides of the water pump, and can be used to either pump RV anti freeze into the pump and system, or to clear the pump of any residual water after draining the tank and blowing out the lines. Disconnect the supply side, connect the hose, then stick it in a gallon of RV anti freeze, then turn on the pump to pull the anti freeze into the pump and lines (if you want). Or, disconnect the discharge side, stick the hose into an empty jug, turn on the pump and catch the water. You can make your own out of parts from any RV place.
The toughest part is getting access to the pump.
This little hose fits on both sides of the water pump, and can be used to either pump RV anti freeze into the pump and system, or to clear the pump of any residual water after draining the tank and blowing out the lines. Disconnect the supply side, connect the hose, then stick it in a gallon of RV anti freeze, then turn on the pump to pull the anti freeze into the pump and lines (if you want). Or, disconnect the discharge side, stick the hose into an empty jug, turn on the pump and catch the water. You can make your own out of parts from any RV place.
The toughest part is getting access to the pump.