Winnebago Itasca Ellipse Owner's Manual page 118

SECTION 7 –
PLUMBING
20. Flush the sewage tank using the Black Waste
Tank Flush Inlet (if equipped).
21. Close dump valves and refit the dust cap onto
the 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
completely winterized.
See instructions for "Removal From Storage"
in Section 11 - Maintenance.
Method 2 – Antifreeze Fill
Procedure
(Fill plumbing lines with RV water system
antifreeze)
This procedure may be performed on all
models, but MUST be performed on
Models 40CD and 42AD (with the
Hydronic Heating System)
NOTE: As an alternative to totally draining the
waterlines, you may winterize tanks and
waterlines by filling them with non-toxic
RV water system antifreeze through the
plumbing system.
This product is available from your
dealer and from most RV supply stores
and national retail outlets.
Follow directions on the container to
determine the correct amount to use for
your coach.
Your coach is equipped with a manually
operated waterline winterization system for your
convenience in winterizing fresh waterlines.
The system features a diverter valve with
siphon tube to draw non-toxic RV water system
antifreeze into the waterlines. There is also a
water heater bypass valve to avoid filling the
water heater with antifreeze (not available on
Models 40CD and 42AD). This feature is located
near the water pump in the water center or utility
compartment.
7-16
Leave water heater 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.
WARNING
NEVER use automotive antifreeze/
coolant in your RV water system. Auto
antifreeze contains ethylene glycol which,
if ingested, can cause blindness and can
be fatal.
Remove Water Filters (if equipped)
Before pumping RV antifreeze into water
system, remove water filter cartridges (if
equipped).
1. Remove and discard the filter cartridge from
the filtered water faucet assembly (if
equipped) below the galley sink.
(If your coach is not equipped with a filtered
water faucet, proceed to the next numbered
step.)
Water Filter Assembly
(Located below galley sink)
• Twist the filter cartridge counter-clockwise
(left) 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.