I have a flow test report showing the residual and pitot pressure being the same. 60 static, 20 residual with a 20 pitot on a 2.5" opening for 750 gpm. I talked to the contractor and they described doing it correctly, two hydrants one static/residual, one flowing. I don't believe it's possible to have the residual and pitot the same pressure but I'm having a hard time articulating why not. I know I've never seen this before and probably have done almost 1,000 tests in my life. Any input? Is it possible? Either way why or why not?
Chris Cahill, PE* Senior Fire Protection Engineer Burns & McDonnell 8201 Norman Center Drive Bloomington, MN 55437 Phone: 952.656.3652 Fax: 952.229.2923 [email protected]<mailto:[email protected]> www.burnsmcd.com<http://www.burnsmcd.com/> Proud to be one of FORTUNE's 100 Best Companies to Work For *Registered in: MN _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
