Winnebago Vista 26P Operator's Manual page 81

The system features a diverter valve with
suction 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. This feature is
located near the water pump in the water center
or utility compartment.
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.
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.
Set Up Winterization Valves
1. Turn Water Heater Bypass Valve to BYPASS
position.
2. Remove and save the protective cap from the
end of the RV Antifreeze Siphon Tube.
3. Insert the end of the siphon tube into a pail or
other container with 2 to 3 gallons of non-
toxic RV antifreeze solution.
RV Antifreeze Siphon Tube and
Winterization Valve
(See Drain Valve Location chart at end of this section)
-Typical View
4. Turn the Diverter (Winterization) Valve
handle so that it points toward the siphon tube.
Fill Lines
5. Turn the Water Pump switch on.
6. 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).
7. Press the toilet flush pedal and hold until
antifreeze begins flowing into the toilet.
Leave small amount of antifreeze that remains
in the bowl.
When Done Adding RV Antifreeze
8. Turn Water Pump switch off.
9. Turn the Diverter Valve handle so it points
toward the waterline to the pump. This will
stop the flow from the siphon tube and revert
the tank line flow to the pump.
10. Replace the protective cap onto the end of the
siphon tube to keep out insects and debris
when not in use.
SECTION 7 -
PLUMBING
Siphon Tube
• (Insert into
container of
RV water
system
antifreeze)
Winterization
Valve
• (Point toward
siphon tube for
winterizing)
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