2021 OWNERS MANUAL / 386
Step 9
If the tower will be lowered during storage, be certain that the tower
does not rest on the boat upholstery or on any support that rests
on the upholstery. The tower or support(s) may leave a permanent
imprint on the upholstery. This is not covered under warranty. For
ProStar models use the black tower support legs included with
the boat from the dealership to keep the tower from resting on the
motorbox.
Step 10
Cover the boat with a boat cover or tarp.
NOTE: If the boat is to be stored outside and subject to accumu-
lations of snow, water and ice, a MasterCraft mooring cover with
anti pooling poles should be used. If you do not have a MasterCraft
mooring cover, a tarp or other water resistant cover should be
used with a support so that the covering will not sag, rip or tear,
thereby allowing water to enter the boat. Two-inch diameter PVC
plumbing pipe is ideal for this purpose. It is readily available at
local hardware stores, and it is easy to work with. Also, its rounded
shape will prevent damage to the canvas.
BALLAST SYSTEM
WINTERIZATION
Ballast tanks, pumps, hoses and fittings must be properly winter-
ized to prevent freezing damage during winter storage. Because of
the complexity of preparing a ballast system for winter storage, as
well as the possibility of extreme damage to the ballast system if a
preparation error is made, MasterCraft recommends scheduling an
appointment with an authorized dealer’s service department to have a
certified technician to perform all winterization procedures, including
ballast winterization.
MasterCraft uses a -50 F RV type, nontoxic, propylene glycol based
antifreeze to winterize every boat built at the factory. Any antifreeze
meeting these requirements is acceptable for MasterCraft engine,
ballast, and freshwater system winterization. Be aware that colder
climates may require this same type of antifreeze with a -100 F
temperature rating.
To winterize X Series, XT Series and
ProStar models:
1. Completely empty all ballast tanks and bags of any water that may
be in the ballast system.
2. Remove all ballast bags (if applicable) and re-attach the bridge
connector (pictured right) to the ballast thru hull vent hose and the
2021MCOwnerManualFINAL.indd 386 8/26/20 1:54 PM
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