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Old 07-30-2011, 08:41 PM
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mitchgo mitchgo is offline
LawnSite Silver Member
 
Join Date: Dec 2008
Location: Redmond, WA
Posts: 2,575
Having a blow out installed prior to the back flow assembly is illegal and is a form of cross contamination.

Up here when we see this.. We always recommend to take it out and install it down stream of the bfp
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