Moomba Gravity Edition, Owner'S Manual

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© 2009 Skier’s Choice, Inc.
Gravity Ballast System
2 Versions — Gravity 1 and Gravity 3
The optional Gravity Ballast System is an electronically controlled
ballast system that can be operated from the driver’s seat. The
Gravity System is available in a 1 or 3 position system. The switch
panel to the 3 position system is located directly below the
shifter mechanism, and the 1 position system is operated from
a switch on the dash. Each switch allows independent filling
and draining of each ballast container by simply hitting the fill
or drain switch. If the system fails to fill or drain, you may check
the resettable breaker on the switch panel, or the separate
ballast fuse block located under the dash area. The ballast bags
or tanks can be found in the front ski locker, under the rear seat,
or in the rear v-drive storage areas depending on the the model
and ballast system.
Care should be taken that the ballast bags are situated properly
with the fill hose on top and drain hose on bottom and that all
fittings are installed securely. The bags should not be twisted
and the bags should be free to expand and drain completely.
Care should be taken to prevent sharp objects from coming
in contact with the bags. Cuts and punctures to the bags are
not warrantable.
Each Gravity Ballast System also includes a manual shut off valve
in case of emergencies. If closed, the valve will prevent any
water from entering the system and is only used in emergency
situations. Under normal use the valve should remain open to
allow full flow of water into system.
Gravity I - 1 Position System
Priming the System
To allow water into the system, the Gravity 1 Ballast System
utilizes a scooped intake strainer to force water into the system.
This allows the ballast system to be filled while running or sitting
still. If air becomes trapped in the system, it may be necessary to
run the boat at planing speeds to force water into the system and
allows the fill pump to prime fully. Once the pump has primed
it is no longer necessary to run the boat for filling. This situation
may occur if the boat is trailered.
When bags begin to vent, shut off!
DO NOT OVERFILL BALLAST BAGS!