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Old 01-09-2011, 10:48 AM   #7
ole dude
Montana Master
 
Join Date: Apr 2007
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Posts: 992
M.O.C. #7128
Our local water system out here in the boonies requires these on all outside faucets. Last about six months if you use them. 6 or 7 bucks at the Home Depot here. I think they are more of a vacum breaker than a true backflow preventer.
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