SECTION 7 –
PLUMBING
7-12
Your coach is equipped with a manually
operated waterline winterization system for your
convenience in winterizing fresh waterlines.
The system features a winterization (diverter)
valve with an antifreeze siphon tube to draw non-
toxic RV water system antifreeze into the
waterlines. There is also a water heater bypass
valve to avoid filling the water heater with
antifreeze. See Water System Drain Valve
Location chart at the end of this section for the
location on your model.
Leave bypass valve handle in NORMAL
FLOW position if draining water and blowing
out waterlines. Place in BYPASS position ONLY
when using antifreeze in waterlines.
Remove Water Filters (if equipped)
1.
Remove the Ice Maker Water Filter
Cartridge (if equipped).
Remove the ice
maker filter cartridge from the filter assembly
below the galley sink.
(
If your coach is not equipped with an ice
maker, proceed to the next numbered step
).
•
Twist the filter cartridge counter-clockwise
(left) about a quarter-turn and pull it down and
out of the filter socket.
NOTE: The water filter head has a built-in
bypass. No separate diverter plug is
needed.
Set Up Winterization Valves
2. Turn water heater bypass valve to BYPASS
position.
3. Remove and save the protective cap from the
end of the antifreeze siphon tube.
4. Insert the end of the antifreeze siphon tube
into a pail or other container with 2 to 3
gallons of non-toxic RV antifreeze solution.
5. Turn the winterization valve so that it points
toward the antifreeze siphon tube.
Fill Lines
6. Turn the water pump switch on.
7. Open each hot and cold water faucet handle in
the coach, one at a time, until antifreeze
solution just begins to flow from the faucet,
then close.
Do not forget the exterior shower/wash station
knobs (if equipped).
WARNING
Never use automotive antifreeze/coolant
in your RV water system. Auto antifreeze
contains ethylene glycol which, if
ingested, can cause blindness and can
be fatal.
Ice Maker Water Filter Assembly
(Located below galley sink)
Antifreeze
Siphon Tube
• Insert into
container of
RV water
system
antifreeze
Winterization
Valve
• Point toward
antifreeze
siphon tube
for winterizing
Antifreeze Siphon Tube and
Winterization Valve
-Typical View
(See Drain Valve Location chart at
end of this section)