[Sprinklerforum] Re: Dry System Drain Manifolds

Note the tie-in drains are restricted to 25nb to stop the Dry Pipe tree system becoming a grid system. Russell Gregory e-mail rcgreg...@snap.net.nz From: Jamie Seidl Sent: Thursday, February 1, 2024 3:32 PM To: Discussion list on issues relating

[Sprinklerforum] Re: Dry System Drain Manifolds

You can tie-in multiple low point drains on dry systems together. it's actually a "shall" for multiple branchlines. NFPA 13 2013 & 2016 8.16.2.5.3.6 Tie-in drains shall be provided for multiple adjacent trapped branch pipes and shall be only 1 in. (25 mm).Tie-in drain lines shall be pitched a

[Sprinklerforum] Dry System Drain Manifolds

I remember seeing something that says you cannot combine dry system drains together, but I cannot find it. FWIW, this would be post drum drips. Thanks, Taylor Schumacher _ SprinklerForum mailing list: