Tie in drains don't need it at every line. But, it is my understanding, as others have said on here - up to the drain valve must be listed. After the valve can be just about anything within reason. We were suggesting a valve at the end of every line as the ONLY way you could run PVC for the drain lines. It is highly impractical from a cost perspective.
Check in A3.2.1 in the 2016 NFPA 13 handbook if you have it. Travis Mack, SET MFP Design, LLC 3356 E Vallejo Ct Gilbert, AZ 85298 480-505-9271 fax: 866-430-6107 <mailto:email:tm...@mfpdesign.com> email:tm...@mfpdesign.com <https://na01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.mfpdesi gn.com%2F&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C14e5497c16da4 2e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=HJ8OA4xyeHAoxXNz5mu%2 FYfycgtd5nsFrrpvzulZiNkQ%3D&reserved=0> http://www.mfpdesign.com <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.facebo ok.com%2Fpages%2FMFP-Design-LLC%2F92218417692&data=02%7C01%7C%7C1121d49f9e6b 4cf248f108d4df580e77%7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C6363790166 77342180&sdata=H%2BwdcgK8DLGBcNoqJEvUrzsXngySwkX56Vgf9gM9EGk%3D&reserved=0> https://www.facebook.com/pages/MFP-Design-LLC/92218417692 Send large files to us via: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.highta il.com%2Fu%2FMFPDesign&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77%7C 14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=eGdMZGu2 wXhUupGwgGTrqF3b54OP5%2BAZvlHhABSexWY%3D&reserved=0> https://www.hightail.com/u/MFPDesign LinkedIn: <https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.linked in.com%2Fin%2Ftravismack&data=02%7C01%7C%7C1121d49f9e6b4cf248f108d4df580e77% 7C14e5497c16da42e69ffa77d19bafe511%7C0%7C0%7C636379016677342180&sdata=tT5E7L sZjSmyreKi4gDCa70EWN%2BZodi%2FhbeCbHNRijI%3D&reserved=0> https://www.linkedin.com/in/travismack "The bitterness of poor quality remains long after the sweetness of low price is forgotten." From: Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> On Behalf Of Scott Futrell Sent: Friday, March 30, 2018 3:22 PM To: sprinklerforum@lists.firesprinkler.org Subject: RE: PVC drain line Well. Am I having a Friday afternoon brain fart? Where does 13 say I can't have a drain line out of other materials, and tie-in drains don't need valves at the end of every line, right? Scott Office: (763) 425-1001 x 2 Cell: (612) 759-5556 From: Sprinklerforum [ <mailto:sprinklerforum-boun...@lists.firesprinkler.org> mailto:sprinklerforum-boun...@lists.firesprinkler.org] On Behalf Of Matthew J Willis Sent: Friday, March 30, 2018 5:13 PM To: Forum < <mailto:sprinklerforum@lists.firesprinkler.org> sprinklerforum@lists.firesprinkler.org> Subject: RE: PVC drain line So, The answer would be no. Right? Plastic is fine for drain, not listed. But all piping before the valve is. R/ Matt Sent from my Verizon 4G LTE Droid
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