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Old 10-08-2020, 05:11 PM   #2
UpstateGreg
Junior Member
 
Brand: Thor Motor Coach
Model: Hurricane 29M
State: New York
Posts: 26
THOR #20250
Assuming it is like my Hurricane 29M, the hot water tank bypass valves are under the sink behind a false wall at the back. Turn off the water pump first if it is on. Turn all three valves under the sink. Then open the external hot water tank door and use a socket or wrench to undo the white plastic plug and the water will drain out of the tank (and all over you if you aren't careful).

This is only part of the winterization process. You need to drain the freshwater tank using the valve in the basement storage compartment under the tank. The water pump can then be used to feed the pink antifreeze into all the water lines. The water pump is located under the rear dinette seat. There is a valve near the water pump that bypasses the freshwater tank and allows you to feed antifreeze into the system by connecting a hose to the plugged off connector that the bypass valve switches the feed to the pump to. If this doesn't make sense, it will once you look under the seat.

Remember also to pour some antifreeze into the outside sink and use the macerator pump to feed it up the drain lines for that sink. The other drains can just have antifreeze poured into them.

There are also low point drains for this model I assume. I haven't looked for them yet but I will when I go to winterize mine.
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