Key West Boats 189/203 family sportsman, Quick Manual

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Fresh Water System (Option 203FS)
Fresh Water Supply
Fresh water is stored in a 6 gallon tank located under the console floor, directly below the console seat box. Access to the tank is achieved
through a hatch inside the console. The tank features a fill line, vent line and supply line. These fittings should be checked annually. It is
critical that only potable water be used in the tank. Failure to do so will require overhaul of the entire freshwater system.
Fresh Water Fill and Vent
The fresh water tank is filled from a fill deck plate marked “WATER”. It is located on the port side of the console seat. Before filling the tank,
verify the quality of the water and make sure area around the fill is free of containments that could enter the tank. While filling, verify the
tank is venting through the tank vent which is located on the front side of console seat. An absence of air escaping from the vent may
indicate a blockage or kink in the vent line. This will result in the tank failing to fill all the way which will show in water flowing out of the
fill well before coming out of the vent. It will also diminish the performance of the fresh water system as a blocked vent will create a
vacuum in the tank as water is used, thereby resulting in less water to the pump, continuous cycling of the pump and loss of water pressure.
This could ultimately result in damage to the pump. Check the vent line periodically to ensure there are no kinks or blocks.
Washdown Pump
The fresh water washdown system is fed by a pump that is located adjacent to the water tank. The pump is controlled by a switch and
fuse(See Electrical Schematics). Water is supplied to the pump from the tank outlet located on the bottom of the tank and is gravity fed from
the weight of the water in the tank. This allows all 6 gallons to be used. The fresh water pump features an in-line strainer for collecting any
debris that could damage the pump. The strainer should be checked periodically and features a clear cap for easy inspection. If any debris
is found, remove the strainer screen by untwisting the clear cap and clean the screen. The pump features a built in pressure regulator that
will shut the pump off when pressure is achieved in the system. The fresh water washdown faucet is located on the port side under the
gunwale cap, adjacent to the console. If the system has not been used for a period of time, it may be necessary to prime/bleed the system of
any air. Before activating the pump, open the fresh water washdown faucet and than switch on the pump. When the system is free of air,
you can either close the faucet or shut off the pump. It is important to check the washdown pump annually and periodically spray it with a
corrosion inhibitor.
System Operation and Maintenance
Only use potable fresh water in the system. Always verify there is sufficient quantity of water in the tank before activating either the
washdown or mister system. Insufficient water quantity will cause the pumps to run dry and may lead to failure/damage. Before using the
freshwater system for the first time on the water, fill the tank and cycle all the water out to ensure the tank is clean and free of contaminants.
Afterwards check strainer(s) for debris and clean if necessary.