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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
R.V. antifreeze. DO NOT use ethylene glycol
solutions; the type that is used in engine cool-
ant systems. These are toxic.
NOTICE
Be sure to wipe up any antifreeze that has been
spilled on the fiberglass shower surfaces.
C. Winterizing the Waste System
To winterize the waste holding tank, flush the tank with
soap, water and a deodorizer (e.g., Lysol Liquid™).
Empty the tank and pour two (2) gallons (3 gallons if
equipped with overboard discharge) of R.V. antifreeze
into the bowl and flush.
If the boat is equipped with overboard discharge capa-
bilities, follow the normal procedures above. Run the
discharge pump only long enough until the antifreeze
solution is being pumped overboard.
For additional information, refer to the manufacturer's
manuals in the owner's packet.
NOTICE
The instructions listed in this section provide a
working knowledge to winterize the water and
waste systems. However, to prevent possible
damage to components in your boat, Four
Winns® recommends having the boat winterized
by your Four Winns® dealer.
Vista 248/268 Owner's Manual
03/00
Section J
Page 9
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