That may be a factor Mike, I didn't know that. But twice we let the system settle for several hours and it would finally settle at 80-75 psi.
I would like it to be just a expansion but don't think so. Sent from my iPhone Aaron M. Peck, SET Fire Protection Skype +1(202)407-9079 Cambodia +855(0)78700407 > On Apr 15, 2014, at 5:03 PM, Mike Cabral <[email protected]> wrote: > > The PE pipe will expand and you will see a pressure drop as a result. Take a > look at some of the PEX mfg sites and you will find data regarding testing > methods. > > Sent from my iPhone > >> On Apr 15, 2014, at 8:39 AM, Aaron Peck <[email protected]> wrote: >> >> No, I got that. >> >> The plumber is telling me that it's not a leak in the underground but in the >> lead-in connections for individual office containers. Got 20 individual >> containers outfitted for office and living quarters. There's aboveground PE >> pipe and where they connect he says that's the area of leaks. Dropping about >> 50 psi from 200 psi over 5 mins. >> >> Trying to figure out how many gpm need to leak for a 50 psi drop. >> >> Sent from my iPhone >> Aaron M. Peck, SET Fire Protection >> Skype +1(202)407-9079 >> Cambodia +855(0)78700407 >> >>> On Apr 15, 2014, at 3:42 PM, [email protected] wrote: >>> >>> Are you talking about the allowable loss for underground systems? >>> >>> Craig L. Prahl, CET >>> Fire Protection Group Lead >>> CH2MHILL >>> Lockwood Greene >>> 1500 International Drive >>> Spartanburg, SC 29303 >>> Direct - 864.599.4102 >>> Fax - 864.599.8439 >>> CH2MHILL Extension 74102 >>> [email protected] >>> >>> >>> >>> -----Original Message----- >>> From: [email protected] >>> [mailto:[email protected]] On Behalf Of Aaron >>> Peck >>> Sent: Tuesday, April 15, 2014 3:54 AM >>> To: [email protected] >>> Subject: Finding a formula >>> >>> I can't seem to find one but I'm trying to find the volume of water loss >>> during a pressure test. I can get the total volume of water in the pipe but >>> can't seem to find a formula to help with finding the volume loss. >>> >>> Sent from my iPhone >>> Aaron M. Peck, SET Fire Protection >>> Skype +1(202)407-9079 >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >>> _______________________________________________ >>> Sprinklerforum mailing list >>> [email protected] >>> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org >> _______________________________________________ >> Sprinklerforum mailing list >> [email protected] >> http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
