Pressurized Water System; System Operation - Four winns 338 Vista Owner's Manual

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 operat ing properly,
have it checked by your authorized Four Winns
dealer.
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 60 psi. Refer to Figure J2 and the
draw ings at the end of this section.
A. Priming the System
After filling the water tank, open all faucets partial ly.
Activate the FRESH WATER circuit breaker switch
on the cabin AC/DC 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
faucets and continue until all fau cets are shut off. As
the pressure builds, the pump will automatically shut
off at 60 psi. Refer to Section H-5 - 12 Volt Electrical
Equipment and the manu fac turer's literature included
in the owner's packet for additional informa tion.
B. System Operation
When properly primed and activated, the pressur ized
water system can be used in the same man ner as
the water system in a home. An automatic pres sure
sensor in the water pump keeps the system pressur-
ized. Sim ply turn on the faucet and water will be
deliv ered. If the system has been recently filled, or
has not been used for an extend ed period of time,
air bubbles may accumu late at the pump and/or in
the waterlines. If this should happen, re-priming may
Water and Waste Systems - Section J
be necessary. Refer to the preceding subsection
regarding priming the system.
To obtain the most consistent mix ture of hot and cold
water, turn the cold water on full, then mix in hot water
until the desired temperature is ob tained. If water
pump cycling occurs, some minor varia tions in water
tempera ture can be expect ed.
Whenever the boat will be left unat tended for an
extended period, the water pump circuit breaker
switch should be turned to the OFF position. This
switch should also be turned OFF whenev er the water
tank is to remain empty for an extend ed period of
time.
C. Water Heating Systems
A water heater is a standard feature available on the
338 Vista models. The capacity of the water heater
®
may be found on our website at www.fourwinns.com.
Refer to Figure J3 and to the drawings at the end of
this section.
NOTICE
Water heater location may vary due to the
installation of optional equip ment.
The water heater utilizes 120 volt (220 volt on 50
Hertz models) power. The water heater breaker switch
is located on the cabin 120 Volt AC panel.
NOTICE
DO NOT supply 120 volt power to an empty
water heater. Damage to the heat er will re sult
immediately. The water system must be filled
and primed before attempting to use the water
heater.
Bow
Figure J3: Water Heater Location
Water Heater
Owner's Manual Page 90