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The first post

Thursday, June 30th 2005, 8:17am

by rsuber

low pressure to all zones

I have a six zone system on city water. I measure approx 85 psi from the ourdoor faucet. All zones seem to have low pressure, heads not popping op completely, poor water spray, etc. Should I look at the main anti-backflow valve since this is the common device? Is so, what do I need to look for? This system has been installed for 6 years.