A lot of good responses. Another consideration might be if you would be required to do a drain test from this connection. That would be under pressure and a higher volume that a straight drain. It might need to be considered in the roof drain design.
> > On Aug 23, 2023 at 8:54 AM, <Brian Harris > (mailto:[email protected])> wrote: > > > > > > We have a project with standpipes and a basement. All floors above the > basement drain through the Standpipe drain and empty at grade. We usually > then drain the remaining (basement) section of standpipe through the bottom > hose valve. The GC is asking if we can instead drain that last section by > tying into the roof drain in the same stairwell that runs outside below > grade. Is this a no-no? > > > > > > > > Brian Harris, CET > > > > BVS Systems Inc. > > > > bvssystemsinc.com (http://bvssystemsinc.com/) > > > > Phone: 704.896.9989 > > > > Fax: 704.896.1935 > > > > > > > > > > > _________________________________________________________ SprinklerForum > mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to [email protected] >
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