Reblogged from TRX RV!
Winterizing your water system
Drain the fresh water tank by opening the water tank drain. Leave drain open.
Drain the water heater by opening the drain valve at the bottom of the heater, and opening the pressure relief valve.
Close the water heater drain and pressure relief valve
If your trailer is equipped with a water heater bypass valve, turn water heater bypass valve(s) to the bypass position. If not, install a temporary bypass by disconnecting the water lines from the back of the water heater and joining them together with a water line and fittings
If the trailer is equipped with a water purifier, remove the cartridge
Disconnect water pump suction hose from pump, and run another hose from the pump directly to the antifreeze container. BE SURE TO USE ONLY NON-TOXIC RV ANTIFREEZE. . . continue!
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