Winterizing Procedure - Winnebago Vista User Manual

SECTION 7 -
PLUMBING
Normal
Flow
CAUTION
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 Motorhome. 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
7-14
By-Pass
Mode
press the backflow valve "button" in the
center of the inlet to drain any water trapped in
the inlet line.
Using exterior shower to drain waterline
-Typical View
4. Remove the Ice Maker Water Filter
Cartridge (if equipped). Remove the ice
maker filter cartridge from the filter assembly
below the galley sink.
(If your coach is not equipped with an ice
maker, proceed to the next numbered step).
Ice Maker Water Filter Assembly
(Located below galley sink)
• Twist the filter cartridge "counter-clockwise"
about a quarter-turn and pull it down and out
of the filter socket.
NOTE: The water filter head has a built-in
bypass. No separate diverter plug is
needed.