De-Winterizing Your Motorhome - THOR Class C Series Owner's Manual

WA T E R S Y S T E M S
NOTE: Do not operate the water heater or
use the motorhome plumbing system after
the water system has been winterized.
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15. Close the faucet hot water lines and repeat with the cold water lines on all the faucets.
16. Flush the toilet a couple of times until you see antifreeze in the bowl.
When you are done adding RV antifreeze:
17. Remove the water hose from the container of RV antifreeze.
18. To prevent staining, wipe the RV antifreeze out of the sinks, shower (or tub) and toilet
using a soft, dry cloth.

De-winterizing Your Motorhome

1. Drain the holding tanks (fresh water, waste water, and sewage).
2. Attach a garden hose to the fresh water fill, and fill the fresh water tank.
3. Turn ON the water pump switch and open the cold water side of all faucets and shower
fixtures. Shut OFF the faucet and shower fixtures after the water runs clear (no pink
residue), and repeat for the hot water side.
4. Flush the toilet until clear water runs into bowl.
5. Dump the holding tanks again.
6. Sanitize the water system (refer to Sanitization).
7. If a potable (drinking) water filter has been installed: drain the water lines, remove the
assembly, clean and reinstall using a new potable (drinking) water filter.
8. When ready to use the water heater, open the bypass valve allow water to enter and fill
the water heater tank (remember to shut OFF the water heater bypass mixer valve, if so
equipped).
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