HOWTO: Water System Winterizing
118
© 2014 by Roadtrek, Inc.
Water heater bypass valves in the open
position. In the open position, all handles
are horizontal
Water heater bypass valves in the bypass
position. In the bypass position, all
handles are vertical
• Set the valves at the water heater to the by-pass position. The
“
middle valve
”
(the one on the water line connecting the line
at the top of the water heater to the inlet at the bottom of the heater) should be turned in line with the tubing. Turn each
one 90 degrees to achieve the bypass position.
•
• Check to be sure that the fresh water drain on the exterior tank and the black and and gray tank valves are all closed.
Move the single lever galley faucet all the way to the cold side, and leave it open.
•
• Add 1 1/2 gallons of non-toxic RV approved antifreeze to the fresh water tank through the gravity fill. Use a funnel and
wash any spillage off the paint.
•
• Turn the water pump on and allow to prime. Close cold galley sink faucet once you see pink antifreeze coming out. Switch
the red handle to the interior tank position.
•
• Move the single lever galley faucet to the hot side, and run until you see pink antifreeze come out. Open both hot and cold
faucets in the bathroom sink. Open the toilet valve. Open the hot and cold faucets on the outside shower. Observe the
antifreeze flow through all fixtures, then close each fixture. Ensure antifreeze flows into all P-traps (galley sink, washroom
sink, and shower). You may also consider adding antifreeze from the extra half gallon in the container jug to the shower
floor-pan trap.
•
• If the water pump loses its prime in this process, add more antifreeze to the interior fresh water tank.
