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SANIT/~/NG
THE FRESH WATER SYSTEM
Sanitize the fresh water tank and piping at least
'once a year, and whenever the motor home sits for
a prolonged period. Tllis will help keep the .tank and
lines fresh,and will discourage the growth of bac-
teria and other organisms that can contaminate the
water supply. Use a chlorine/fresh water rinse as fol-
lows:
.
1.Prepai"e a solution of
1/4~cup
hO'usehold liq-
uid chlorine bleach (5% sodium hypochlo-
rite) to one gallon of water for each 15 gal-
lons of tank capacity.
2.
Close drain valve and faucets, pour chlorine
solution into the fresh water' tank ,filler
spout, and complete filling with fresh water.
3.
Open all faucets individually until water
flows steadily, then turn off. This will purge
· any air from the lines. Be sure the water
pump has power and is turned on.
4.
Top off water tank with fresh water and wait
three·hours.
5.
Drain and flush the entire system with ·pota-
ble.,water (drinking quality) by opening fresh
water tank drain valve and faucets.
6.
~emove
any lingering chlorine taste or odor
by preparing a solution of one quart vinegar
'. and five gallons of water. Pour this solution
into the fresh water tank filler spout,after
closing drain valve and faucets. Complete
· filling with fresh water.
. .
7.
Repeatsteps 3 and 4 above.
8,
Drain the tank again,. flush with potable
water with all faucets open, then close tank
valve and faucets and refill. The system is
now sanitized and ready for use.
THE,
WATER PUMP
The on-board fresh water system is pressurized by
a self-priming, 12-volt DC pump. The pump operates
automa.tically when a faucet or valve is opened.
When the faucet or valve is closed, the pump shuts
off. A built-in check valve prevents back flow and
protects the pump and fresh water tank from exces-
sive city water system pressures up to 200 psi. The
pump stroke will overcome air trapped in the lines
thus preventing air lock. At free flow the pump
draws approximately 7 to 7-1/2 amps, and can run
dry for extended periods without damage. A 10-amp
fuse protects the pump circuit, and is located on the
electrical distribution panel. See ELECTRICAL SYS-
TEM.
21
. THE MONITOR PANEL
. The monitor panel allows you to conveniently
check the approximate levels in the fresh water tank
and the holding tanks. Electrical probes installed in
the tanks measure the levels at vario.!Js points in the
~nb.'···
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1.
Press "WATER" or "HOLDING TANK .1 OR
2" rocker switches. Holding tank 1 is the
black water tank, and holding tank 2 is gray
water.
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2.
The "E", or empty indicator light. will always
be lit. If the tank is full, all lights will be on.
Lights.are sequential, and indicate level in
. approximately 1/4-tank. increments. If the
tank selected is approximately
1/2~full,
for
example, lights "E'!, 1/4, and 1/2 will beon.
. 3.
Erroneous indications can be caused by:
a.
Water with low mineral.content. Level
is measured by a very low level electri-
cal signal traveling through the liquid.
Some water, very low in mineral con-
tent used in the fresh water tank may
not conduct the signal properly. This
condition may be· infre.quent, but 'can
exist. Check the panel reading when,:the
fresh water tank is filled .
•
b.
Material trapped on the sides of the
holding tanks may give a full reading
when the tank is actually empty. Use of
a spray to wash out the tank following
dumping should help prevent this con-
dition.
TROUBLESHOOTING
THE FRESHWATER SYSTEM
Water system problems usually. fall into two
categories: inherent systemprobli!ms, and problems
caused by neglect. System problems are usually the
'result of road vibration,. and campsite water pres-
sure variations. Problems of neglect usually stem
from failure to clean filters, improper winterization,
and poor battery maintenance. Most water system
problems can be avoided by conscientious mainte-
nance.
Leaks
Vibration, flexing and twisting while traveling can
work pipe fittings loose. Check all plumbing for leaks
at least once a .year. If the water pump runs when
a faucet is not open, suspect a leak. Be sure the tank
drain valves are tightly closed. Leaks occur most
often around threaded fittings .. If necessary, tighten
or clean and tighten the fitting. Do not over-tighten
fittings. Connections at galley and lavy fixtures
should not be tightened with a wrench. They will
normally seal with hand-tightening. If a leak persists
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