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Old 07-30-2011, 09:58 PM
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mitchgo mitchgo is offline
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Join Date: Dec 2008
Location: Redmond, WA
Posts: 2,577
Hence why I said Form of cross contamination

Hey I follow the codes of good ol California. Besides.. Back flow preventors do not like air which causes the checks to slam about and heat up/ break/melt

Just the other day I went out to a new customer for a stuck valve. When I took apart the valve. I found a part of a broken spring from the back flow assembly
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