Cut a section of old garden hose and connect to the Winterizing port(lower right).
Place the Water Heater By-Pass lever(on left) in the By-Pass position.
Place the Winterizing lever(on right) in the Winterizing position.
Place the end of the old garden hose in the RV antifreeze jug.
Switch the Water Pump to the "ON" position.
Open each water faucets, one at a time, to allow antifreeze to run out.
Close the first faucet you've opened and go the the next faucet. Repeat for each faucet.
Once antifreeze has run through all faucets, toilet valve and outside shower connection, switch water pump to the "OFF" position.