It sounds like you have all the pertinent information to make a quick analysis of the system with a new hydrant flow test? The main drain test is just a quick and dirty during the inspection means for verifying there isn't a serious issue or water supply degradation. Obviously it would be preferable to have the original test, but then again who's to say something wasn't lodged in the pipe from day 1, if your concern is piping integrity between the city and the property you can always pitot the main drain test and draw a curve from there. The results you've obtained sound bad, but there's no way to know if it's a pipe problem or a water supply problem without a new flow test at the city main really.
Mike Morey, CFPS, SET Planner Scheduler/Designer BMWC Constructors, Inc. 1740 W. Michigan St, Indianapolis, IN 46222 O: 317.651.0596 | C: 317.586.8111 [email protected] | www.bmwc.com ________________________________________ From: [email protected] [[email protected]] on behalf of Forest Wilson [[email protected]] Sent: Monday, December 30, 2013 11:57 AM To: [email protected] Subject: No Test Cert, No Main Drain tests to compare I have a question: A few weeks ago, I posted that I had conducted a main drain test on a system installed in 1996. Since installation, this was the first main drain test performed. The Hydraulic Calc Plaque showed residual 40 psi. My main drain test was 15 psi. Since the difference exceeded 10%, and there were no former main tests to compare to, I compared to the Hydraulic plaque and wrote the owner a letter informing them that the system may be impaired and recommended further investigation. I recommended that they obtain the Contractors Test Certificate since that is the only main drain we can compare to. The owner has been unable to obtain the Test Cert. They contacted the installation contractor and the contractor has the As-Builts and original hydrant flow test but not the Test Certificate. As a side note, the installation was terrible, upright sprinklers installed 6' below roof level, upright installed as a pendent, etc. I didnt note these on the inspection since I was just doing an NFPA 25 inspection. What is the recommended course of action? I don't need suggestions about NFPA 25 or liability to me (the owner is an organization I belong to) ; What is the recommended course of action for the owner? -- Forest Wilson Project Manager 1855 Bellbrook Ave Ste C Xenia OH 45385 Ph: 937-736-0425 ///WHO IS JOHN GALT?/// ******This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.*** _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
