Itasca latitude 37G, Manual

Page: 82 / 135

SECTION 7 –
PLUMBING
7-12
18. Empty the water pump strainer filter bowl to
avoid water freezing and cracking the filter
bowl. See “Water Pump” previously in this
section.
Dump and Clean Holding Tanks
19. Completely drain the sewage and 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 sewer hose.
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
totally winterized.
See instructions for removal from storage in
Maintenance Section.
Method 2 – Antifreeze Fill
Procedure
(Fill plumbing lines with RV water system
antifreeze)
NOTE: As an alternative to totally draining the
water lines, you may winterize tanks and
lines 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 water line winterization system for your
convenience in winterizing fresh water lines.
The system features a diverter valve with
siphon tube to draw non-toxic RV water system
antifreeze into the water lines. There is also a
water heater bypass valve to avoid filling the
water heater with antifreeze. This feature is
located near the water pump in the water center
or utility compartment.
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.
)
CAUTION
Leave Bypass valve handle in ‘Normal
Operation’ position if draining water and
blowing out water lines. Place in ‘Bypass’
position ONLY when using antifreeze
solution in water lines.
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.
Water Filter Assembly below Galley Sink