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Old 07-30-2011, 10:45 PM
Mike Leary's Avatar
Mike Leary Mike Leary is online now
LawnSite Fanatic
Join Date: Mar 2007
Location: Cactus Hug, Arizona
Posts: 21,022
I never blew through any assembly, used a 7 psi bicycle pump instead. I suppose a unit could be blown if the operator had a compressor that could be dialed-down, but that seems like a waste of time, plus the possibility of melting the the checks. I installed a quick-couple just south of the backflow with brass fittings to absorb the heat of the compressor and blew my heart out with this method for thirty years.
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