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The materials from which the components of the water
system are made may give the water supply a peculiar
taste, especially when new. This condition is normal
and can be reduced somewhat through the use of a water
filter; such as that produced by Ametek® Inc. Also,
chemicals such as Sudbury's Aqua-Fresh™ and
Pettibone's Aquabon™ are effective. The taste will com-
pletely dissipate in time.
The fresh (potable) water system should be dis-
infected prior to initial use.
The water system should be disinfected before first use
and at the beginning of each season. The following in-
formation is a general guide to disinfecting the fresh water
system.
1. Flush the boat's water system thoroughly with fresh
water. Make sure all nontoxic antifreeze is removed
from the system.
2. The water system should be drained completely.
3. To disinfect the water system, use one gallon of wa-
ter and 1/4 cup of Clorox or Purex household bleach
(5% sodium hypochlorite solution). This is recom-
mended for each 15 gallons of tank capacity.
4. Allow to stand for three (3) hours. If time is a factor,
greater concentrations of chlorine solution will be
needed to disinfect the water system.
5. Drain the system.
6. Flush the system thoroughly with fresh water.
7. Fill the system with fresh water.
To remove excessive chlorine taste or odor which might
remain in the system, prepare a solution of one quart
vinegar to five gallons water and allow this solution to
agitate in the tank for several days during boating. Then
drain tank and refill with fresh water.
All drains are equipped with traps, and the water will drain
slowly. If the system is not operating properly, have it
checked by your authorized Four Winns® dealer.
Vista 248/268 Owner's Manual
03/00
J - 2
PRESSURIZED WATER SYSTEM
The water pump is an automatic, on-off, self-priming
pump that can service several outlets at once. The pump
will build up water pressure and will turn off when it
reaches 35 psi. It will generate 20 psi with the faucets
open. Refer to Figure J1, J2, and the drawings at the
end of this section.
A. Priming The System
After filling the water tank, open all faucets partially. Then,
activate the FRESH WATER switch on the cabin panel
to supply the system with water. Let the pump run until
water comes out of the galley faucet, head faucet and
transom shower.
After all the air has been purged from the system and a
steady flow of water is coming from each outlet, turn off
the faucets one by one. Begin with the cold water fau-
cets and continue until all faucets are shut off. As the
pressure builds, the pump will automatically shut off at
35 psi. Refer to Section H-4 12 Volt Electrical Equip-
ment and the manufacturer's literature included in the
owner's packet for additional information.
B. System Operation
When properly primed and activated, the pressurized
water system can be used in the same manner as the
water system in a home. An automatic pressure sensor
in the water pump keeps the system pressurized. Sim-
ply turn on the faucet and water will be delivered. If the
system has been recently filled, or has not been used
for an extended period of time, air bubbles may accumu-
late at the pump. If this should happen, re-priming may
be necessary.
To obtain the most consistent mixture of hot and cold
water, turn the cold water on full, then mix in hot water
until the desired temperature is obtained. If water pump
cycling occurs, some minor variations in water tempera-
ture can be expected.
Whenever the boat will be left unattended for an extended
period, the water pump switch should be turned to the
OFF position. This switch should also be turned OFF
whenever the water tank is to remain empty for an extend-
ed period of time.
Section J
Page 2
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