SECTION 8-PLUMBING SYSTEMS JAYCO TOWABLE
Demand (Power Plumbing System) Method:
It may be easier to winterize the RV with another person to assist you.
Antifreeze should never enter the water heater, RV water filter, refrigerator, refrigerator
water filter, or fresh water tank.
1. Turn water heater power OFF. (both switches: Electric & LP Gas) Water heater
should never be drained when HOT or under pressure.
2. Level the RV and drain the fresh water plumbing system. (See Draining the Fresh
Water System)
3. Replace the water filter cartridge with the clear plastic bypass hose (if so equipped).
On full system canister water filters (if so equipped), remove the canister, take out the
filter, and reattach the empty canister.
Residential Refrigerator: Antifreeze should be kept out of the refrigerator. Remove
the refrigerator water filter and discard. Replace with a new one in the spring.
Open low point drain for refrigerator and drain the water. Unplug the refrigerator,
prop open the doors to prevent odors.
De-Winterizing Refrigerator: Flush the antifreeze from all the RV water lines first
to keep antifreeze out of the refrigerator lines. Do not plug in the refrigerator or
operate ice maker or water dispenser until all antifreeze is flushed out of the system.
4. Water heater should be empty after performing Step 2.
5. Make sure the “fresh water tank drain” and “low point drains” are closed. This would
include the refrigerator/washer low point drains (if so equipped).
6. Set the water valves to WINTERIZE setting, connect a hose to the City Water Fill
inlet. Insert the other end of the hose in a container of antifreeze. Turn the pump ON.
Antifreeze will be drawn into the water lines and fixtures (pump only runs when a
faucet or fixture is open).
7. Turn the water pump ON. Antifreeze will be drawn into the water lines.
8. Open the hot water line faucets (kitchen/bath sinks, shower and outside shower (if so
equipped)) until RV antifreeze begins to flow continuously.
9. Close the hot water line faucets and repeat with the cold water line faucets.
Toilet: Flush the toilet several times until you see antifreeze in the bowl.
Washing Machine (If So Equipped): Set the water temperature to WARM, begin
filling the washing machine. This will bring antifreeze in through the hot and cold
water lines. Run the washer just long enough to bring about a quart of antifreeze
into the drum. Turn off the hot and cold faucets. Pause the machine, select the
Rinse/Spin cycle and let it run for about 1 minute. This will drain antifreeze down
into the pump. Stop the washer and unplug it. Wipe out any excess antifreeze in the
drum.
Dishwasher (If So Equipped): Put the dishwasher on the rinse cycle for a minute or so and
it will put antifreeze into the pump.
De-winterizing the Washing Machine: Run a full empty wash cycle before camping
season begins.
NOTE: When set to WINTERIZE: antifreeze will
not enter the water heater or the fresh water tank.
There are no dedicated water heater bypass valves.
8-27
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