99
8.1 General
A sea chest is located in the aft systems room
bilge supplies seawater to the raw water pumps.
Two intake thru-hull fittings for the sea chest are
equipped with ball valves to turn the raw water
main supply to the sea chest ON or OFF. Other
ball valves at the outlet connections on the sea
chest enable the operator to turn the water sup-
ply ON or OFF for each individual pump in the
system. A sea strainer in each intake supply hose
filters debris as seawater flows to the sea chest.
The strainers should be checked frequently and
cleaned as necessary.
Always make sure all ball valves are open before
attempting to operate any component of the raw
water system.
Priming the System
Open all sea chest intake and raw water pump
supply ball valves. The sea chest is vented to a
thru-hull fitting in the hull side to automatically
purge air from the sea chest as it fills. Activate
the raw water pump systems with the CZone
Chapter 8:
RAW WATER SYSTEM
Raw Water System Sea Chest
control feature. Run the pressure pump by turn-
ing on the raw water washdown hose nozzle at
the rear of the hardtop until all air is purged from
the system. Then turn the hose off. Activate the
baitwell pump with the CZone control feature and
run the pump until all of the air is purged from
the system. Then turn the pump off. Follow the
Sea Chest Intake Thru-Hull Valve & Sea Strainer
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