PURSUIT 3370 OFFSHORE, Owner'S Manual

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3370 OFFSHORE
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Chapter 6:
RAW WATER SYSTEM
6.1 General
In the raw or sea water systems, all water pumps are supplied by hoses connected to ball valves and thru-hull
fittings located in the bilge compartment. Always make sure the ball valves are open before attempting to
operate any component of the raw water system. 12-volt pumps supply sea water to most of the various
accessories.
The optional air conditioner uses an AC sea water supply pump. This is the only AC pump in the system and
it is automatically activated when the air conditioning or heating system is in use.
Priming the System
Make sure the ball valves are open. Open the hose connector for the raw water washdown and activate the
pressure pump by turning the washdown pump switch to the “ON” position. Run the pump until all of the
air is purged from the system and then turn the switch off. Turn the livewell switch to the “ON” position.
Run the pump until all of the air is purged from the system and then turn the switch to the “OFF” position.
Closing the thru-hull ball valves before the boat is hauled from the water will help to eliminate air locks in
raw water systems.
It may be necessary to reprime the raw water system if the system is not used for an extended period and at
the time of launching.
6.2 High Pressure Washdown
A high pressure pump, controlled by a pressure sensor, supplies the raw water hose connector located in the
cockpit. The pump is activated by the washdown switch located under the gunwale on the side of the cockpit
on the starboard side. This switch should be turned to the “ON” position just before using the washdown and
be turned to the “OFF” position when the washdown is not in use.
When activated, the pressure switch will automatically control the pump. As the pressure builds in the
washdown hose, the pump will shut off. When the washdown hose is in use and the pressure drops, the pump
will turn on.
The raw water washdown system is equipped with a sea strainer on the intake side
of the pump located aft bilge port side. This should be checked frequently and
cleaned as necessary.
The Washdown Pump Connector
The washdown pump hose connector is located in the cockpit and uses a standard
garden hose connection.
Washdown Hose
Connector