SECTION 7 –
PLUMBING
7-8
WINTERIZING PROCEDURE
You can winterize the water and plumbing
system of your coach using one of the following
two methods – 1) Blow out waterlines using
compressed air or – 2) Fill waterlines with RV
water system antifreeze.
Method 1 – Blow Out Procedure
(Drain and purge waterlines using
compressed air)
1.
Level the Motor Home.
If the coach is not
level, there may be “low points” in waterlines
that can trap water in the lines and prevent it
from draining properly.
2.
Drain Fresh Water Tank and Waterlines.
Open all waterline drain valves and drain
fresh water tank. (See “Water System Drain
Valve Locations” chart at end of this section
for locations of drain valves on your model.)
3.
Drain Exterior Shower/Wash Station.
Open exterior shower knobs and lay shower
head on ground as shown to drain any water
left in the shower line. Also place the tip of
your finger into the city water inlet and gently
press the backflow valve button in the center
of the inlet to drain any water trapped in the
inlet line.
4.
Open Faucets.
Turn on the water pump and
open all sink faucets and shower head knobs.
Leave open after water stops flowing.
5.
Drain Toilet.
Press the toilet flush pedal and
hold until water stops flowing in the toilet.
Then turn water pump switch off.
6.
Drain Optional Appliances.
At this time, if
your coach is equipped with an optional
refrigerator ice maker, dishwasher or washer/
dryer, the waterlines for these appliances must
also be drained.
(See “Winterizing Optional Appliances”
instructions at the end of this section.)
If not, proceed to the next step.
7.
Drain Water Heater.
Turn off the water
heater power switch before draining the water
heater tank to avoid damage to the heating
element. Drain the water heater by removing
the plug from the base of the water heater tank,
accessible from the outside of the coach.
(Requires socket and ratchet.)
Also open the Pressure-Temperature relief
valve at the top right portion of the tank to
prevent air locking in the tank while draining.
Using Exterior Shower to Drain Waterline
-Typical View
Water Heater Drain Plug
(Remove with socket)
Lift handle only when water heater is cold
