No. It's to flush the incoming line of small debris before sending water to your expensive backflow test equipment attached to the second petcock, or at least that was what I was taught at backflow school oh so many years ago. Back then we could test by column of water but I hear that's no longer acceptable. Apparently backflow test equipment manufacturers have shown us the truth about that hack Newton and his so-called "scientific" physical relationships. Atmospheric pressure, gravity, I spit on it all.
On 8/23/07, Garth W. Warren <[EMAIL PROTECTED]> wrote: > but isn't the point of the first gauge to show the pressure of the > underground? > > Garth > > ----- Original Message ----- > From: "Ron Greenman" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Thursday, August 23, 2007 10:44 AM > Subject: Re: BFP pressure measurement on supply side... > > > If you're using it as your check valve then yes. If you have another > check in the riser (AV) then no. That's by 7.1.1.2 as mentioned by the > others (I hope some of you got that and I hope that more got it now > that I pointed it out). Enforcement around here is spotty. If it's > residential there doesn't seem to be much concern about it in these > parts. By USC rules puttint anything but the test gauge hose adapters > on any of those test cocks would be considered altering the device and > abbrogating its listing. You have to watch out for backflow nazis. > > On 8/23/07, å... .... <[EMAIL PROTECTED]> wrote: > > got a request by reviewing authority to put a > > > > pressure gage on the supply side of a BFP. > > We have one on our slick riser, but is one > > required on the supply side? Sounds like > > a good idea. But don´t most BFP´s have > > mounts for installing and removing gauges? > > > > The BFP is our system check valve. > > > > Scot Deal > > Excelsior Fire > > _______________________________________________ > > 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) > > > > > -- > Ron Greenman > at home.... > _______________________________________________ > 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) > > > _______________________________________________ > 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) > -- Ron Greenman at home.... _______________________________________________ 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)
