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Periodically remove the filter screens from the faucet dis-
charge spouts and shower head. Remove the accumula-
tion of sediment from the screens. If necessary, clean
out the holes using a fine wire. A build-up of debris in the
faucet filter screens can create enough restriction to cause
the pump to cycle on and off.
Check the in-line water filter/screen for sediment and
blockage. It is located between the water tank and the
pressure water pump. If obstructed, remove from the water
line and either clean or replace the part. The filter unit will
twist apart.
Inspect and clean the shower sump every 30 days. Some
water will always be in the compartment. Sediment and
other debris will build-up and affect the automatic bilge
switch and pump operation. Remove the pump's cover
and clean the screen. The screen will become blocked
and the pump will not operate properly. To clean the com-
partment, use baking soda and a fine wirebrush to re-
move dirt and other debris. This will also serve to disin-
fect the area.
B. Winterizing the Water System
Winter lay-up service procedures should include a thor-
ough draining of the water system. Disconnect all ac-
cessible fittings. Blow out all lines. Be sure the hot
water heater, fresh and grey water tanks, transom
washdown, pumps and lines are completely dry. Leave
all faucets open. Freezing water can cause severe dam-
age to all water system components.
NOTICE
Always winterize the fresh water system prior to
winterization of the hull drainage (bilge pump)
system.
Draining the system as mentioned can be very tedious
and an incomplete job can result in expensive repairs.
The use of non-toxic anti-freeze (such as R.V. anti-freeze)
designed for fresh water systems considerably reduces
the work necessary and is a more positive means of
winterizing the system. Follow the directions included
with the anti-freeze solution.
To winterize:
1. Turn on the water pump and drain the water tank by
opening a faucet (the pump will run faster when it is
empty). The water tank on the 238 model can be
drained by removing the withdrawal hose from the
tank and allowing water to drain into the bilge.
Vista Owners Manual
10/93
NOTICE
Be sure the circuit breaker for the water heater in
120 Volt AC panel is in the OFF position. The
water heater will be damaged by supplying elec-
trical power to an empty water heater.
DO NOT run the water pump without water in the
system. Pump damage can result. Be watchful
and turn the pump off as soon as the tank be-
comes empty.
2. Add 10 gallons of R.V. anti-freeze to the water tank
for the 258 and 278 models and 7 gallons for the 238
model.
The hot water heater will require approximately
five gallons of anti-freeze before the hot water
lines will have anti-freeze running through them.
The cold water faucet should be turned OFF at
some point to test for anti-freeze in the hot water
line.
3. Turn ON all faucets (both hot and cold) until undi-
luted antifreeze is seen. Make sure the transom
washdown, head faucet and galley faucet have anti-
freeze coming out.
4. Activate the shower sump pump and pour approxi-
mately 1 quart of non-toxic antifreeze down the shower
drain. The shower sump will discharge some of the
anti-freeze overboard.
Use only non-toxic anti-freeze solutions such as
R.V. anti-freeze. DO NOT use ethylene glycol
solutions; the type that is used in engine cool-
ant systems. These are toxic.
NOTICE
Be sure to wipe up any anti-freeze that has been
spilled on the fiberglass shower surfaces.
C. Winterizing the Waste System
To winterize the waste holding tank, flush the tank with
soap, water and a deodorizer (e.g., Lysol Liquid). Empty
the tank and pour two (2) gallons (3 gallons if equipped
with overboard discharge) of R.V. anti-freeze into the bowl
and flush.
Section G
Page 7
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