SECTION 8-PLUMBING SYSTEMS JAYCO TOWABLE
1. Turn ON the water at the water source. Enter the vehicle and open the cold water
supply faucets to bleed air from the water lines. When the water lines are nearly
full, you may experience some "air pockets." Allow them to escape before closing
the cold water supply faucets.
NOTE: The City Water Fill inlet when connected to a pressurized fresh water
source sends water through the water lines and fixtures without the use of the pump.
The fresh water tank cannot be filled using the City Water Fill. The Gravity Fill is
used to fill the fresh water tank.
2. The water heater (if so equipped) will fill first, followed by the supply lines and
faucets. Water heater valves A&B must be open to allow water into the water heater,
valve C should be closed. Refer to the Water Heater Bypass section for an
explanation on configuring the bypass valves. Bypass valves are normally located
near the water heater.
The fresh water connection should be unscrewed (i.e., the non-toxic drinking water
hose disconnected) when the recreation vehicle 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:
1. Shut OFF the water at the pressurized water source.
2. Disconnect the non-toxic drinking water hose and reinstall the connection cap. The
connection cap should always be installed if the water fill is not in use.
Using the Gravity Fill:
You can fill the fresh water tank from a container of fresh water and the Gravity Water Fill
inlet if you do not have access to City Water. Allow extra time to fill the fresh water
system if you are using this method. The gravity fill will have a potable water label next
to it. Do not remove this label.
Using the Gravity Water Fill:
If needed, sanitize the water system. (Refer to Sanitizing the Plumbing System section)
Low point & fresh water tank drains should be closed.
1. Remove the connection cap and insert a non-toxic drinking water hose into the
Gravity Fill inlet. The other end of the hose goes into a container of fresh potable
water.
NOTE: The hose will not attach to the gravity fill it will only slide into the
connector opening.
2. Pour the fresh water into the Gravity Fill until the tank is full.
3. Open both the hot and cold water faucets, along with outside shower faucets (if so
equipped) when filling the fresh water tank to allow air pockets to be forced out of
the system.
4. When the fresh water tank on the RV is full, remove the non-toxic drinking hose and
container from the Gravity Water Fill. Replace the connection cap. This cap should
always be installed if the water fill is not in use.
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