SECTION 7 –
PLUMBING
7-14
Dump and Clean Holding Tanks
16. 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.
17. 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
waterlines, 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 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. This feature is
located near the water pump.
Leave bypass valve in NORMAL FLOW
position if draining water and blowing out
waterlines. Place in BYPASS position ONLY
when using antifreeze solution in waterlines.
Remove Water Filters
1. Remove and discard the filter cartridge from
the cold water filter assembly below the galley
sink. (
If your coach is not equipped with
filtered cold water, continue to next numbered
step.
)
• Place a container beneath the filter to catch
any water remaining in the waterlines during
filter removal.
• Twist the filter cartridge counter-clockwise
(to the left) about one-quarter turn, then pull
it down and out of the filter socket.
• Install the diverter plug into the filter socket.
Insert plug up into the filter socket as far as
possible and twist clockwise (to the right)
one-quarter turn until it stops.
WARNING
NEVER use automotive antifreeze/
coolant in your RV water system.
Automotive coolant/antifreeze contains
ethylene glycol which, if ingested, can
cause blindness and can be fatal.
