Winnebago Sightseer 26P Manual page 74

SECTION 7 –
PLUMBING
Lift handle only when water heater is cold
8. After water has stopped draining at all faucets
and drain valves, leave faucets open and
connect a "blow-out" plug to the city water
connection on the coach. Then use a
compressed air hose regulated to 30 psi or less
to force air through the system. A "blow-out"
plug can be purchased at any Winnebago
®
Itasca dealer.
City Water
Connection
Blow-out
Fresh Water
Inlet
NOTICE
Limit air pressure to 30 psi to avoid
damage to equipment.
NOTE: DO NOT burst air into the system. This
can damage the water pump. It is better
to let air in slowly.
9. Let air flow for five minutes until water is
completely drained out of faucets and drain
valves. Then close faucets one at a time.
10. Operate and hold toilet flush lever until water
is completely drained from toilet.
7-8
®
Air Hose
Plug
11. Turn air pressure off and disconnect water
purge adapters. Recap the city water
connection to avoid contamination by dirt or
insects.
12. Follow procedure listed in "Final Steps."
Method 2 - Antifreeze Fill
Procedure
NOTE: As an alternative to totally draining the
plumbing system, you may winterize
tanks and lines by pumping non-toxic RV
antifreeze through the system. This
product is available from your dealer
and from most RV supply stores. Follow
directions on the container to determine
the correct amount to use for your coach.
Your coach is equipped with a manually
or
operated water line winterization system for your
convenience in winterizing fresh waterlines.
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.
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 antifreeze draw tube.
WARNING