7-11
SECTION 7 -
PLUMBING
WATER HEATER BYPASS
VALVE
Your coach may be equipped with a water
heater bypass valve for easier winterization of
waterlines using RV antifreeze. See table at the
end of this section for valve location.
Turn the handle as shown to either bypass or
flow through the water heater.
Leave bypass valve handle in NORMAL
FLOW position if draining water and blowing
out waterlines. Place in BYPASS position ONLY
when using antifreeze solution in waterlines.
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 and drain the entire
plumbing system as described in the
following steps.
2. Open waterline drain valves and drain fresh
water tank (see Water System Drain Valve
Locations chart at the end of this section for
locations of drain valves on your model).
3. Open the Exterior Wash Station shower knobs
(if equipped) and lay shower head on ground
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. Turn on water pump and open all sink faucets
and shower head knobs. Leave open after
water stops flowing.
Siphon
Tube
Winterization
Valve
Winterization Valve
(Typical)
Normal
Flow
By-Pass
Mode
