Huh? From: Sprinklerforum [mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Matthew J Willis via Sprinklerforum Sent: Wednesday, March 18, 2020 10:35 AM To: sprinklerforum@lists.firesprinkler.org Cc: Matthew J Willis <ma...@rapidfireinc.com>; Travis Mack, SET, CFPS, CWBSP, RME-G <tm...@mfpdesign.com>; 'Spencer Tomlinson' <spen...@tomlinsonfire.com> Subject: Re: Minimum Lead-in Sizing
I think you just have to add domestic if under 4". Matt On the road.. ________________________________ From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>> on behalf of Travis Mack, SET, CFPS, CWBSP, RME-G via Sprinklerforum <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Sent: Wednesday, March 18, 2020 11:32:04 AM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> <sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org>> Cc: Travis Mack, SET, CFPS, CWBSP, RME-G <tm...@mfpdesign.com<mailto:tm...@mfpdesign.com>>; 'Spencer Tomlinson' <spen...@tomlinsonfire.com<mailto:spen...@tomlinsonfire.com>> Subject: RE: Minimum Lead-in Sizing What is the reference for a minimum 4"? We've had several smaller than that over my career. Never had an issue that I know of. [MFP_logo_F]<http://www.mfpdesign.com/> Travis Mack, CFPS, CWBSP, RME-G, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 NEW EXTENSION: 480-505-9271 ext. 700 fax: 866-430-6107 tm...@mfpdesign.com<mailto:tm...@mfpdesign.com> www.mfpdesign.com<http://www.mfpdesign.com> Send large files to us via: https://www.hightail.com/u/MFPDesign<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.hightail.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> LinkedIn: https://www.linkedin.com/in/travismack<https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linkedin.com%2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=tT5E7LsZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> "The bitterness of poor quality remains long after the sweetness of low price is forgotten." From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org<mailto:sprinklerforum-boun...@lists.firesprinkler.org>> On Behalf Of Spencer Tomlinson via Sprinklerforum Sent: Wednesday, March 18, 2020 10:30 AM To: sprinklerforum@lists.firesprinkler.org<mailto:sprinklerforum@lists.firesprinkler.org> Cc: Spencer Tomlinson <spen...@tomlinsonfire.com<mailto:spen...@tomlinsonfire.com>> Subject: Minimum Lead-in Sizing Hi all - I've got a customer that's in a pinch and I'm trying to help them out. They have a 2" lead in supplying an existing building, mixed use commercial/residential. NFPA 13 protection on 2 floors. The 2" will actually calculate as it sits. My question for those that have run into the "minimum pipe size is 4" requirement from an AHJ before, on a 13 system, what argument have you used to contradict the statement? The ASTM standards listed in the underground piping tables of 13 for brass, copper, and stainless piping all include/cover pipe sizes smaller than 4". Section 23.4.1.3 (2016 edition) states that pipe sizing shall only be limited by available water supply. Any other good arguments out there? Spencer Tomlinson Principal, PE [red logo] Ph: 316-202-6412 Fax: 316-202-2346 Cell: 620-955-7293 www.tomlinsonfire.com<http://www.tomlinsonfire.com/>
_______________________________________________ Sprinklerforum mailing list Sprinklerforum@lists.firesprinkler.org http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
