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SECTION 7 –
PLUMBING
7-18
When Done Adding RV Antifreeze
8. Turn the Water Pump switch OFF.
9. Turn the Winterization valve so it points
toward the waterline connected to the water
pump.
This will stop the flow from the antifreeze
siphon tube and revert the tank line flow to the
water pump.
10. Replace the protective cap onto the end of the
antifreeze siphon tube to keep out insects or
debris when not in use.
Drain Water Heater (with Tank)
11a.Turn off the Water Heater Power switch
before draining the water heater tank to avoid
damage to the heating element. Drain the
water heater (with tank) by removing the plug
from the base of the water heater tank,
accessible from the outside of the coach
(requires socket and ratchet). Reinstall the
water heater drain plug and close the P-T
Relief valve when drained
•
Also, open the Pressure-Temperature Relief
valve to prevent air locking while draining.
•
Reinstall the water heater drain plug and close
the Pressure-Temperature Relief valve when
drained.
Water Heater (Tankless)
11b.Turn the (Tankless) Water Heater Power
Switch OFF.
Fill Drainage System P-Traps
12. Pour approximately 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 coach during storage.
Dump and Clean Holding Tanks
13. Completely drain the 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 dump outlet and sewage drain hose.
Water Heater Drain Plug
(Remove with socket)
Pressure-Temperature Relief Valve
(Lift handle only when water heater is cold)
Water Heater (Tankless) Power
Switch