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broken pipe at zone valve
service call ..... why would the pvb valve leak at the top bonnet when the feed line to one of the zone valve is broken right at the valve ( run over by tree trimmer in the lawn) . at the pvb with the feed line open from the house main and the feed to the zone valves off it doesn't leak at the top bonnet , turn on the 1/4 turn valve the feeds this broken zone valve and water blows out the top bonnet , why???
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