Yes, the jockey pump check valve was replaced as well. Issue was still present.
Micah Davis, SET NICET #124745 Water Based Systems Layout, Level IV Dynamic Fire Designs Mail: [email protected] Mobile: 931-242-1299 www.dynamicfiredesigns.com<http://dynamicfiredesigns.com> Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill • FL • 34609 This message is confidential. It may also be privileged or otherwise protected by work product immunity or other legal rules. If you have received it by mistake, please let us know by e-mail reply and delete it from your system; you may not copy this message or disclose its contents to anyone. The integrity and security of this message cannot be guaranteed on the Internet. ________________________________ From: Sprinklerforum <[email protected]> on behalf of Michael Hill <[email protected]> Sent: Friday, June 15, 2018 10:46 AM To: [email protected] Subject: Re: Pump Discharge Piping Did you check the jockey pump check valve? We had one that had a damaged seat and allowed pressure to bleed off. Michael Hill On Jun 15, 2018, at 11:24 AM, Micah Davis, SET <[email protected]<mailto:[email protected]>> wrote: Yes, and with the suction control and bypass valve closed, everything works properly. We are working now to isolate the bypass check valve and see if it is leaking by. Mike with Key Fire Protection in Augusta, GA called and also suggested our jockey pump may be undersized. It appears our jockey pump has a max flow rate of 5.7gpm. We may not be getting enough water out of our jockey pump. The investigation continues! Micah Davis, SET NICET #124745 Water Based Systems Layout, Level IV Dynamic Fire Designs Mail: [email protected]<mailto:[email protected]> Mobile: 931-242-1299 www.dynamicfiredesigns.com<http://dynamicfiredesigns.com> Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill • FL • 34609 This message is confidential. It may also be privileged or otherwise protected by work product immunity or other legal rules. If you have received it by mistake, please let us know by e-mail reply and delete it from your system; you may not copy this message or disclose its contents to anyone. The integrity and security of this message cannot be guaranteed on the Internet. ________________________________ From: Sprinklerforum <[email protected]<mailto:[email protected]>> on behalf of [email protected]<mailto:[email protected]> <[email protected]<mailto:[email protected]>> Sent: Friday, June 15, 2018 9:35 AM To: [email protected]<mailto:[email protected]> Subject: Re: Pump Discharge Piping With the suction control closed, and everything downstream tight, whether or not the checks were fully seated would not matter, right? Brad Quoting "Micah Davis, SET" <[email protected]<mailto:[email protected]>>: > 100% above ground. > > > Micah Davis, SET > NICET #124745 > Water Based Systems Layout, Level IV Dynamic Fire Designs > > Mail: > [email protected]<mailto:[email protected]> > Mobile: 931-242-1299 > www.dynamicfiredesigns.com<http://dynamicfiredesigns.com<http://www.dynamicfiredesigns.com<http://dynamicfiredesigns.com>> > > > Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill > • FL • 34609 > > This message is confidential. It may also be privileged or otherwise > protected by work product immunity or other legal rules. If you have > received it by mistake, please let us know by e-mail reply and > delete it from your system; you may not copy this message or > disclose its contents to anyone. The integrity and security of this > message cannot be guaranteed on the Internet. > > > > ________________________________ > From: Sprinklerforum > <[email protected]<mailto:[email protected]>> > on behalf of Ed > Kramer <[email protected]<mailto:[email protected]>> > Sent: Friday, June 15, 2018 9:20 AM > To: > [email protected]<mailto:[email protected]> > Subject: RE: Pump Discharge Piping > > > Does this pump supply any underground pipe, or 100% above-ground pipe? > > > > Ed Kramer > > Bamford Fire > > > > From: Sprinklerforum > [mailto:[email protected]] On Behalf Of > Micah Davis, SET > Sent: Friday, June 15, 2018 8:50 AM > To: SprinklerForum > <[email protected]<mailto:[email protected]>> > Subject: Pump Discharge Piping > > > > I have a fire pump installation that is having issues. The > contractor has successfully completed a pump startup and test. > During a separate follow up visit, the pump technician began having > trouble getting the system back up to maintenance pressure after > fire pump operation. The discharge piping has an elbow between the > pump and the discharge check valve. It was first suggested that > this check valve was defective, so it was replaced. The same > problem was experienced after this replacement. It has been > suggested that the elbow directly after the pump is causing > turbulence that is preventing the check valve from closing properly. > I can find nothing in NFPA 20 or the handbook to suggest this is a > concern. Have any of you seen this? What would your recommendation > be? > > > > Micah Davis, SET > NICET #124745 > Water Based Systems Layout, Level IV > > > Dynamic Fire Designs > > > > > > Mail: > [email protected]<mailto:[email protected]><mailto:[email protected]> > Mobile: 931-242-1299 > www.dynamicfiredesigns.com<http://dynamicfiredesigns.com<http://www.dynamicfiredesigns.com<http://dynamicfiredesigns.com>> > > > Dynamic Fire Designs • 13063 County Line Rd., Box #87 • Spring Hill > • FL • 34609 > > This message is confidential. It may also be privileged or otherwise > protected by work product immunity or other legal rules. If you have > received it by mistake, please let us know by e-mail reply and > delete it from your system; you may not copy this message or > disclose its contents to anyone. The integrity and security of this > message cannot be guaranteed on the Internet. _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected]<mailto:[email protected]> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
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