SECTION 7 –
PLUMBING
7-14
NOTE: DO NOT burst air into the system. This
can damage the water pump. It is better
to let air in slowly.
11. Let air flow for five minutes until water is
completely drained out of faucets and drain
valves. Then close faucets one at a time.
12.
Drain Toilet.
Press and hold the toilet flush
lever (or electric wall switch, if your
motorhome is equipped with an electric flush
toilet) until water is completely drained from
toilet.
13.
Turn air pressure off
. Disconnect water
purge adapters. Recap the Fresh Water Inlet to
avoid contamination by dirt or insects.
After Disconnecting Air Pressure
14. Empty the Cold Water Filtration canister of
any water trapped during the blow-out
procedure. Remount empty canister on to
filter assembly.
15. Empty the Full-Coach Water Filtration
canister of any water trapped during the Blow-
Out Procedure. Remount empty canister onto
filter assembly.
16. Close all waterline and tank drain valves and
all faucets to avoid contamination by dirt,
insects, or rodents.
NOTE: Leave the Ice Maker Winterization Drain
valve in the OPEN position throughout
storage period.
17. Reinstall the Water Heater drain plug and
close the P-T Relief valve.
18. Pour about one cup of RV antifreeze down
each drain for the galley sink, lavatory sink,
and shower/tub. This fills the drain trap pipes
to prevent holding tank odors from entering
the motorhome during storage.
NOTE: It is not necessary to add antifreeze to
the toilet since the flush valve will be
closed.
Do not add automotive antifreeze or
caustic chemicals such as bleach or
laundry detergents into the toilet bowl or
holding tanks. Although these products
may have a deodorizing effect, they may
damage plastic and rubber parts in the
system.
19. Empty the Water Pump strainer to avoid water
freezing and cracking the filter bowl. See
“Water Pump” previously in this section.
Dump and Clean Holding Tanks
20. Completely drain the sewage and waste water
holding tanks at an approved waste disposal
site. Drain the sewage tank first so the
following waste water can rinse any waste
solids from the sewage drain outlet and hose.
21. Flush the sewage tank using the Black Waste
Tank Flush Inlet.
22. Close waste tank drain valves and refit the
dust cap onto the sewage drain outlet.
This will inhibit rust formation on valve shafts
and prevent entry and contamination by
airborne debris, insects, and rodents.
Your drainage and fresh water systems are
now winterized.
See instructions for removal from storage in
Section 11 - Maintenance and Storage.
Antifreeze Fill Procedure
(Fill plumbing lines with RV water system
antifreeze)
NOTE: Winterize tanks and waterlines by filling
them with non-toxic RV water system
antifreeze through the plumbing system.
This product is available from your
NOTICE
Limit air pressure to 30 psi to avoid
damage to equipment.
City Water
Connection
Fresh Water
Inlet
Blow-out
Plug
Air Hose
