JAYCO TOWABLE SECTION 8-PLUMBING SYSTEMS
If the recreation vehicle is to be stored over the winter months, the water heater must be
drained to prevent damage from freezing. Damage to the water heater caused by freezing is
not warrantable. It is recommended the water heater be drained and bypassed during the
winterization process, particularly if introducing RV antifreeze into the plumbing
system. The water heater should never be drained when HOT or UNDER
PRESSURE.
To drain the water heater:
1. Turn off electrical power to the water heater either at the switch from the electrical
element or at the breaker.
2. Shut off the propane supply to the water heater.
3. Turn off the water pump.
4. Open both hot and cold water faucets.
5. Remove the anode rod from the tank.
For detailed information see the Winterizing The Plumbing System and Water Heater
Bypass sections of this manual.
WATER HEATER BYPASS VALVES (IF SO EQUIPPED)
Most floor plans have a factory installed water heater bypass which enables you to avoid
filling the water heater with RV antifreeze. Bypass valves are typically located in close
proximity to the water heater. Outside utility centers (if so equipped) operate differently
than a factory installed bypass system. Refer to the Outside Utility Center section for
details.
NOTE: In the Water Heater Bypass Diagram, valve D is the fresh water tank shutoff.
Valve E is used to introduce RV antifreeze into the lines when winterizing the system and
has a clear hose attached to it. See Winterizing the Plumbing System in this manual.
Valves D & E are typically located in the vicinity of the water pump which can be under a
dinette bench, kitchen island, or bed.
Water heater switches (if so equipped):
The water heater switches are located on the monitor panel. Refer to the Monitor Panel
section of this manual for function details.
OUTSIDE SHOWER (IF SO EQUIPPED)
A handheld shower assembly with both hot and cold water may be included for use outside
of your recreation vehicle.
1. Be sure the water heater is ON and had sufficient time to heat the water.
heater bypass
Normal Camping Usage: Valves A&B Open
Valve C is Closed
Bypass Mode: Valves A&B Closed
Valve C is Open
Water Heater Bypass Diagram
8-16
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