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SECTION 7
PLUMBING SYSTEMS
F
RESH
W
ATER
H
OLDING
T
ANK
The fresh water tank can be filled by pressure
filling through the fresh water inlet (called city
water) or by gravity fill. There are plastic
overflow tubes plumbed into the fresh water
holding tank. They allow water to flow out of
the water tank. Occasionally, you may see
water coming from the overflow tubes (located
underneath the RV) when the fresh water
holding tank is filled. This is normal, and is
caused by external circumstances, including
the RV being parked on an incline, or the
motion caused by starting or stopping the RV
during travel.
Do not cap, block or modify the fresh water
tank overflow tubes in any way. Enough water
pressure can build up during the filling
process to damage the plumbing system if the
overflow tubes are obstructed.
F
RESH
W
ATER
C
ONNECTIONS
Never leave the RV unattended while filling
the fresh water system.
There are two types of direct exterior fresh
water connections in your RV: city water and
gravity fill.
5. Enter the RV and open the cold water
supply faucets to bleed air from the water
lines.
6. The water heater will fill first, followed by
the supply lines and faucets.
When the water lines are nearly full, you
may experience some "air pockets." Allow
them to escape before closing the cold
water supply faucets.
The fresh water connection should be
unplugged (i.e., the non-toxic drinking
water hose disconnected) when the RV is
left unattended for any amount of time. If
something would happen to the water
system, this may help limit water damage
to a smaller area.
To disconnect the city water fill
7. Shut OFF the water at the water source.
8. Disconnect the non-toxic drinking water
hose and reinstall the connection cap.
To reduce the chance of contamination,
prevent the non-toxic drinking water hose
from coming into contact with the ground.
Reinstall the connection cap when the fresh
water connection is not being used. Do not
remove the following label from your RV:
City Water
Gravity Fill
Fig. 7.1 Fresh water connections
To use the city water fill
1. If needed, sanitize the water system.
2. Move the “water heater bypass valve” to
the NORMAL position.
3. Remove the connection cap and attach a
non-toxic drinking water hose to the inlet.
4. Turn ON the water at the water source.
Fig. 7.2 Potable water only label
Dry camping
You can gravity fill the fresh water system if
you do not have access to city water;
however, allow extra time to fill the fresh
water system if you are using this method.
Follow the steps listed above; however, at
step 3 put the other end of the non-toxic
drinking water hose into your container of
fresh water, and turn ON the water pump
(instead of turning ON the water at the water
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