Joe, ask the AHJ for the section in 13 that says the flow test gpm must equal or exceed the combined sprinkler/hose demand. I may be wrong, but I don't think it's there.
As a designer (yea, I know, I'm a REALLY a layout tech), I'd be nervous if the sprinkler/hose demand was significantly greater than the test gpm, but not 31 gpm. If the potential error associated with a sprinkler/hose demand that is equal to the test gpm would be deemed acceptable by the AHJ, the additional potential error at 31 gpm beyond the test gpm just isn't significant. But maybe the simple mind of a layout tech can't comprehend such things. Ed Kramer Littleton, CO > I have tried a new flow test with two 2-1/2" openings flowing and the > pressure dropped off so that didn't work. I checked the coefficient and > it > is a .9. The hydrant does have a rounded inlet. I don't have play pipes > and > either does the city which is the only one that can do the test. I have > tried different heads and pipes and nothing will drop my GPM to below > the 31 > gpm we are short. > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
