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Old 10-18-2015, 01:58 PM   #2
Bill
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Join Date: Feb 2003
Location: The mountains of Scottsdale, AZ, and the beaches of Maine
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You might do well to check the plumbing diagram in my Tech Album
http://www.trailmanorowners.com/foru...&pictureid=435

As a direct answer, your best bet is probably to put a gallon of water into the tank, and see which valve drains it. It will be one of the two valves ahead of the left wheel.

Bill
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