Trying to figure out the best way to winterize your RV? We can help! Check out this helpful list to ensure your RV is ready for the winter.
Step # 1: If you have any inline water filters remove and bypass before starting. Drain the fresh water holding tank. Drain and flush the gray and black water holding tanks. If the RV doesn’t have a built in flushing system clean the black tank out with a wand. Drain the water heater. Open the pressure relief valve and remove the drain plug.
CAUTION: Never drain the water heater when hot or under pressure. With no water hooked up to the RV and the water pump off open a hot water faucet to remove any pressure on the system. Allow the tank to cool before draining.
Step # 2: Open all hot and cold faucets; don’t forget the toilet valve and outside shower. Locate and open the low point water drain lines. Use the water pump to help force most of the water out of the system, but turn it off as soon as the system is drained to prevent damaging the pump. Recap all drains and close all faucets.
Step # 3: By-pass the water heater. If you do not have a by-pass kit installed the water heater will fill up with RV antifreeze before it goes through the water lines, wasting six or ten gallons of antifreeze.
Step # 4: Install a water pump converter kit, or disconnect the inlet side of the water pump (the line coming from the fresh water holding tank) and connect tubing from the water pump inlet into a one gallon jug of RV antifreeze.
Step # 5: Turn the water pump on and pressurize the system. Starting with the closest faucet to the pump, slowly open the hot and then cold valves until the pink colored RV antifreeze appears. Replace the antifreeze container as required. Repeat on all faucets from the closest to the farthest away. Don’t forget the outside shower.
Step # 6: Flush the toilet until antifreeze appears. Pour a cupful of antifreeze down each drain. Pour some RV antifreeze in the toilet and flush into the holding tank to prevent any water in the tank from freezing. If your water heater has an electric heating element, turn it off. This will protect the element if the unit is plugged in while in storage. Make sure all faucets are closed.
Step # 7: Consult your owner manuals for winterizing ice makers and washing machines.
The unit is winterized. Now, next spring when it’s time to head out in the RV you won’t have any unpleasant, not to mention costly, surprises waiting for you.