Winterize your RV
These are general instructions only and not to be used to replace the method your RV manufacturer recomends.
Drain the fresh water tank then pour in one gallon of R.V. non toxic antifreeze.
Run the water pump for one minute with one faucet open.
Screw a blow out plug into the city water inlet and pressurize the system to 40 psi.
Remove the drain plug from the water heater, blow it dry, and re-install the drain plug.
One at a time open each faucet and blow air through the hot and cold side until no more water sprays out.
Do the same with the shower and the toilet.
Re pressurize the water system as many times as necessary.
Pour 1 cup of RV antifreeze in the traps of the kitchen sink, lavatory, and shower.
Drain the fresh water tank and the water heater, then close the drains.
By-pass the water heater by following the instructions on the kit.
If you can, disconnect the inlet side of the water pump and use a hose to pump antifreeze directly out of the jug.
If not, pour 2 or 3 gallons of non-toxic antifreeze into the water tank and turn on the pump.
Open each faucet one at a time until the pink antifreeze runs out.
Do the same with the shower and the toilet.
Be sure at least 1 cup of antifreeze goes down each trap.
Turn the pump off and run one faucet until the flow almost stops, then remove the screen from the city water connection and push the eraser end of a pencil into the city water connection to trip the check valve and allow antifreeze to run out.
Dump the waste water tanks.
Consult your owners manual for any other things which must be done before winter.