Thor Motor Coach CLASS B, Owner'S Manual

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WA T E R S Y S T E M
C U S T O M E R C A R E | 8 7 7 . 8 5 5 . 2 8 6 7
When an outside source of water is unavailable, water can be
drawn from the on-board fresh water holding tank.
1. Set your water heater bypass valves (if installed) to the
correct position listed on your water system label.
DO
NOT OPERATE THE WATER HEATER IF ITS
WATER SUPPLY IS BYPASSED.
2. If your fresh water tank overflow valves are shut OFF or
capped:
a. Open the fresh water tank overflow shut-off valves; or
b. Unscrew and remove the fresh water tank overflow
valve caps.
3. Remove the cap on the Fresh Water Tank Fill port.
4. Attach a potable water hose to the fresh water tank inlet,
while attaching the other end of the hose to a source
of safe drinking water. Turn ON the valve at the water
source. Only use a water hose designated for potable
water purposes.
5. When the tank is full and water is coming out of the fresh
water overflow tubes located under your motorhome:
a. Stop filling the fresh water tank;
b. Disconnect and stow your water hose;
c. Replace the cap on the fresh water tank fill port.
To use water from the fresh water tank, turn the water pump
ON to pressurize the water in the lines and to the water heater.
Then, gradually open the hot and cold water faucets to clear
air from the lines. Close the faucets when the water is flowing
freely.
NOTE: When traveling, it is a good practice only to
carry a quantity of fresh water that will meet your
needs until arriving at your next destination.
This will reduce the total weight carried by motor-
home, allowing for carrying capacity for other items,
if needed. Refer to Section 5, Occupant and Cargo
Carrying Capacity (OCCC).
Gravity Fill Port
Located on the outside of your motorhome is a gravity fill port
for the fresh water tank. This feature is used when there is not
a potable water hose or safe pressurized water source available
for filling the fresh water tank.
1. The gravity fresh fill port for the fresh water tank is usu-
ally located on the left side of the motorhome, near the
rear (Figure 1).
2. Open the port access door with the supplied key
(Figure 2) and remove the cap (Figure 3).
3. Pour FRESH WATER ONLY into the port. Replace the
cap and close the access door.
THE ON-BOARD FRESH WATER TANK IS FOR POTABLE
WATER ONLY.
Sanitize, flush, and drain fresh water
tank before using.
Failure to maintain tank may result in death or serious
injury.
WARNING WARNING
Do not leave the motorhome unattended while filling
the fresh water tank. Although the fresh water tank has
an overfill vent, incoming water volume may exceed
the capacity of the overfill vent, creating excessive
pressure within the water tank and possible damage to
seals and fittings.
NOTICE NOTICE
Filling the Fresh Water Tank
Figure 1
Figure 2
Figure 3
The style of the gravity fill port may
differ from these illustrations.