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4. Activate the shower sump pump and pour approxi-
mately 1 quart of nontoxic antifreeze down the
shower drain. The shower sump will discharge
some of the antifreeze overboard.
Use only nontoxic antifreeze solutions such as
RV antifreeze. DO NOT use ethylene glycol
solutions; the type that is used in engine
coolant sys tems. These are toxic.
NOTICE
Be sure to wipe up any antifreeze that has been
spilled on the fiberglass shower surfac es.
C. Winterizing the Waste System
To winterize the waste holding tank, flush the tank
with soap, water and a deodor izer (e.g., Lysol
Liquid
). Empty the tank and pour two (2) gal lons
™
(3 gallons if equipped with overboard dis charge)
of RV antifreeze into the bowl and flush.
If the boat is equipped with overboard discharge
capabilities, follow the normal procedures above.
Run the discharge pump only long enough until the
antifreeze solution is being pumped over board.
For additional information, refer to the manufacturer's
manuals in the owner's packet.
NOTICE
The instructions listed in this section pro vide a
work ing knowledge to winterize the water and
waste systems. However, to prevent possible
damage to components in your boat, Four
Winns recom mends having the boat win terized
by your Four Winns deal er.
Water and Waste Systems - Section J
Owner's Manual Page 131
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