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5.
Run the pump until it is dry (approximately 15 to 20 seconds). Operating
the pump longer than that with no water can damage the pump.
6.
Open all faucets in the RV. If there is an outside shower, attach the show-
er hose to the shower, and open the shower faucets.
7.
Attach a blowout plug to the city water inlet on the outside of the RV.
Refer to Fresh Water Connections.
8.
Attach the air hose to the blowout plug. Set compressor to 30 PSI.
9.
Fresh water tank drain should be open.
NOTE: IIf your RV is equipped with a water tank shutoff Valve E
(located near the water pump) it should be opened to allow air to
blow into the water tank (refer to Water Heater Bypass).
10. Blow air into the water lines through the blowout plug and the City
Water Inlet to evacuate all water from the lines.
11. Air should only be blown into the water tank for 30 to 60 seconds to
avoid pressurizing the tank, and then turn the water tank shutoff valve
OFF. Continue blowing out the water lines, which can take 5 to 10
minutes.
12. Pour one cup of RV antifreeze in all the drain P-traps (sinks and bath-
tub).
13. After RV water lines have been blown out, remove the air hose and
the blowout plug from the City Water Inlet.
Winterize the Black Tank Flush (if so equipped)
Connect the blowout plug to the black tank flush inlet on the outside of the RV.
1.
Connect the air hose to the blowout plug. Set the compressor to 30 PSI maximum.
2.
Make sure the black tank has been emptied. Open the black tank drain valve.
3.
Blow air into the flush inlet for 30 to 60 seconds.
4.
5.
Disconnect the compressor and blowout plug.
6.
Close the black tank drain.
Winterizing with Antifreeze Method
Requires non-toxic RV antifreeze in the water lines and does not require any special tools.
Use ONLY RV ANTIFREEZE in your fresh water system for freeze protection. No other
product or commodity should be used.
Automotive antifreeze (ethylene glycol) and windshield washer antifreeze
(methanol) are poisonous. Never use these products in your fresh water sys-
tem. These products are harmful and may be fatal if swallowed.
NOTE: Antifreeze should never enter the water heater, RV water
filter, refrigerator, refrigerator water filter, or fresh water tank.
Section 8: Plumbing System
123
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