Ron and everyone else, Thanks for your replies. I thought that this would be the case, but I believe that this is the first time that I have actually had a pressure increase due to elevation loss. It made sense that I would gain the pressure and I did add it in to my calc program, but I wanted to make sure that I wasn't about to make a rookie mistake. The additional pressure helped tremendously in the calcs on a job that has already been twisting by brain anyway.
Again, thanks for your help! Bob Knight -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ron Greenman Sent: Sunday, September 09, 2007 7:27 PM To: [email protected] Subject: Re: Pressure and Elevation Bob, It's our friend gravity. Sometimes he's with us and sometimes again' us. This time you're on the winning side. Nature and mathematics both like balance. On 9/8/07, Bob Knight <[EMAIL PROTECTED]> wrote: > I have a situation where there is approximately a 35' drop in elevation in > the UG piping from the point-of-connection to the building. This is a > situation that usually seems to occur in reverse. If it were an increase in > elevation I would account for the elevation pressure loss in my > calculations, but since this is a drop in elevation do I take that into > account with my calculations as well? This would give me an additional 15 > or so psi at the base of riser. To me this seems wrong, but is it? Do I > add this to my static and residual pressure? Or, is this just added to the > residual? Or, do I do nothing at all? > > Bewildered in Idaho, > > Bob Knight, CET > (208) 495-2057 > [EMAIL PROTECTED] > www.firebyknight.com > > > No virus found in this outgoing message. > Checked by AVG Free Edition. > Version: 7.5.485 / Virus Database: 269.13.7/992 - Release Date: 9/6/2007 > 8:36 AM > > > _______________________________________________ > 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) No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.485 / Virus Database: 269.13.7/992 - Release Date: 9/6/2007 8:36 AM No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.485 / Virus Database: 269.13.7/992 - Release Date: 9/6/2007 8:36 AM _______________________________________________ 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)
