SECTION 10
PLUMBING SYSTEMS
10-10
9. Now turn air pressure off and disconnect
water purge adapters. Recap the city water
connection to avoid contamination by dirt or
insects.
10. Close all drain valves and faucets to avoid
contamination by dirt or insects. Reinstall
water heater drain plug and close P-T relief
valve.
11. Pour about one cup of non-toxic RV anti-
freeze into the kitchen sink drain, bathroom
sink drain and shower drain. This prevents
any holding tank odors from entering the
coach during storage.
12. Place a bucket beneath the sewage drain
valve outlet and re-drain the sewage and
waste holding tanks of any clean water that
entered during “blow-out” procedure.
Close dump valves to prevent valve shafts
from rusting and to prevent entry by rodents
and insects. Refit the dust cap onto the drain
outlet.
Your drainage and fresh water systems are
now totally winterized.
It is not necessary to add antifreeze to the toi-
let since the flush valve will be closed.
Do not add automotive antifreeze or caustic
chemicals such as bleach or laundry deter-
gents into the toilet bowl or holding tanks.
Although these products may have a deodor-
izing effect, they may damage plastic and
rubber parts in the system.
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.
If your coach is equipped with the op-
tional water heater by-pass valve, you
can fill the hot water lines with anti-
freeze solution without filling the water
heater tank. See page 10-8 for location
of the by-pass valve.
Winterization Valve
Your coach is equipped with a manually
operated water line winterization system for
your convenience in winterizing fresh water
lines.
The system features a diverter valve and suc-
tion tube in-line between the tank and water
pump to draw non-toxic RV water system anti-
freeze into the water lines. This feature is located
near the water pump and drain valves beneath
the rear bed.
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.
1
WARNING
Siphon
Tube
(insert into
container of
RV water
system
antifreeze)
Winterizing
Valve
(point toward
siphon tube for
winterizing)
Winterization Valve
(See page 10-7 or 10-8 for location)
