So nothing flowed past the gauge, it just showed the system pressure drop? I would be suspect too. I don't believe his statement to be true. TD
Subject: Main Drain Inspection Test I recently inspected a wet sprinkler system. It was installed in 1997 and had not been inspected or tested since installation. I conducted a main drain test. The residual pressure was 30 psi. Static 75. According to the hydraulic calc plaque, the residual should be 60. The gauge was downstream of the main drain, approx 80 feet of pipe downstream. I sent a Notice of Impairment to the owner and requested a copy of the Contractors Test Cert to use as a benchmark. The installing contractor told the owner: the pressure gauge is installed in the wrong place and the system is fine. Any thoughts? Forest Wilson _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
