Four winns SL Series Owner's Manual page 86

To winterize:
1. Turn on the water pump/faucet and drain the
water tank. The water tanks on some models can
be drained by removing the with drawal hose from
the tank and allow ing water to drain into the bilge.
NOTICE
DO NOT run the water pump without water
in the system. Pump damage can result. Be
watchful and turn the pump off as soon as the
tank be comes empty.
2. Add 1/2 gallon of R.V. non-toxic antifreeze to the
water tank.
3. Turn ON the pump until undiluted antifreeze
is seen.
Use only nontoxic antifreeze solu tions such
as R.V. 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 surfac es to
prevent possible discoloration or damage
to the gel coat.
Depending upon options and model, additional infor-
mation by the equipment manu facturers is included
in the owner's packet. Also, refer to Section R for
Mainte nance.
Waste & Water Systems - Section J Owner's Manual Page 83