[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Re: “tying into the roof drain in the same stairwell” - Roof drains are not allowed within exit enclosures. Re: NFPA 101: 7.1.3.2.1(10) (2018 edition) - Penetrations into, and openings through, an exit enclosure assembly shall be limited to the following: (a) Door assemblies permitted b

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Steve- Very much appreciated. Brian Harris, CET BVS Systems Inc. bvssytemsinc.com From: Steve Leyton Sent: Wednesday, August 23, 2023 12:14 PM To: Discussion list on issues relating to automatic fire sprinklers Subject: [Sprinklerforum] Re: Roof Drain / Sprinkler Dr

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

And John with the forward flow requirements being enforced by more and more jurisdictions then this full flow capability becomes essential. Anthony Carrizosa Project Manager | Fire Protection 7855 S 206th St Kent, WA 98032 Cell: 206-679-5283 | Office Dir: 253-341-4593 [cid:image001.jpg@01D9D5A3.

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

My only comment - wherever you take a drain discharge, if a main drain test needs to occur, *MAKE SURE THE MAIN DRAIN VALVE CAN BE OPENED FULLY AND ALLOWED TO DISCHARGE AT FULL FLOW FOR SEVERAL MINUTES. A main drain test needs to be completed as required by NFPA 25.* *NO EXCEPTIONS TO THIS REQUI

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Not so fast everyone. The answer to this question depends entirely on your location and the state/local rules that may apply to managing storm water runoff and what is allowed to enter the watershed via the storm drain system. It’s easy poke fun at CA because of our sometimes-suffocating regu

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

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 2

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Skyler- Thank you, will do. Brian Harris, CET BVS Systems Inc. bvssytemsinc.com From: Skyler Bilbo Sent: Wednesday, August 23, 2023 9:32 AM To: Discussion list on issues relating to automatic fire sprinklers Subject: [Sprinklerforum] Re: Roof Drain / Sprinkler Drain

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

In most cases/places, the sprinkler water is considered gray water, and it would be OK to discharge a sprinkler drain to a storm sewer (this is most likely where it would end up if you have ever piped a sprinkler drain out an exterior wall). This is not OK everywhere, so for your specific project,

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

I think that would depend on the municipality, most do not want the sprinkler water going directly into the storm drains, drained to exterior or into a waste drain Thanks Brett Peters General Manager Installation & Design Proudline Fire Protection Services Ltd. br...@proudline.ca 780 490 7602 of

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

May want to check you local plumbing code. There is specific criteria for storm water and wastewater and sprinkler water is many times considered wastewater John P From: Chris Dorn Sent: Wednesday, August 23, 2023 8:17 AM To: Discussion list on issues relating to automatic fire sprinklers S

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Chris- Thank you. We had thought about that but I was just unclear on how the roof drains would be part of the potable water. Brian Harris, CET BVS Systems Inc. bvssytemsinc.com From: Chris Dorn Sent: Wednesday, August 23, 2023 9:17 AM To: Discussion list on issues r

[Sprinklerforum] Re: Roof Drain / Sprinkler Drain

Brian, This would be a cross connection of the potable water system with wastewater. At minimum you would need a 1" air gap. Chris Dorn From: Brian Harris Sent: Wednesday, August 23, 2023 8:53 AM To: sprinklerforum@lists.firesprinkler.org Subject: [Sprinklerforum] Roof Drain / Sprinkler Drain We

[Sprinklerforum] Roof Drain / Sprinkler Drain

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 t