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 antifreeze with a -100 F temperature rating.
Winterization Process
1. Completely empty all ballast tanks and bags of any water that
may be in the ballast system.
2. With all bags still hooked up to the system, identify the ballast
thru-hull vents (see guide to each model in this Owner’s Manual).
3. Add two gallons of -50 F RV type nontoxic propylene glycol based
antifreeze to each of the thru-hull vents. Colder climates may
require antifreeze with a -100 F temperature rating.
4. Once the antifreeze is in all ballast zones, use the manual ballast
switches in the helm area to drain the antifreeze through the
system. This will push antifreeze through the ballast system,
across all pumps, hoses, fittings and intake valves.
5. Be cautious while using the ballast switches as antifreeze will be
pumped out of the intakes mounted to the bottom of the boat.
Once antifreeze begins to pump out of the boat through the 4
ballast intakes (three aft, one forward), turn the pumps o.
FastFill BALLAST PUMPS
Purpose
FastFill ballast pumps are designed to move water through the
ballast system and into or out of ballast tanks nearly three (3) times
faster than standard pumps.
Location
Ballast pumps are mounted throughout the boat.
Operation
Fast fill pumps operate using either the helm mounted touch display
or the manual ballast switches on the dash. For detailed operating
instructions see the “X AND XT SERIES DUAL SCREEN DASH OPER-
ATION” section of the MasterCraft Owner’s Manual.
Annual Maintenance
MasterCraft recommends scheduling an appointment with an au-
thorized dealer’s service department to have a certified technician
perform all impeller changes.
Ballast pump impellers should be changed every 100 hours as part
of annual maintenance. To change ballast pump impellers:
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