[Sprinklerforum] Re: Fire Pump Drains

[John Denhardt]

Anthony - correct, but this annex language and not AHJs will agree.  I also will caution in many building, there are many control valves between the fire pump discharge and the system control valve. If one does not perform a main drain test at each system, how can you confirm all the control valves are in their proper position. In addition, the information for the General Information sign is needed and required to be compared for each system on an annual basis.  Seems like NFPA 25 might need some clarifications. This document is currently open for Public Input. Feel free to make an input.  The AFSA Technical Team will be reviewing this issue.  John John August Denhardt, P.E. Vice-President Engineering and Technical Services American Fire Sprinkler Association  301-343-1457 On May 11, 2023, at 12:27 PM, Anthony Carrizosa <anth...@archerconstruction.com> wrote:  Of note: NFPA 25 -2020 A13.2.3 states that if on a fire pump which is tested annually it not required to perform a main drain test since the water supply is tested through the fire pump. So tis main drain would just be used to drain the wet system for any repairs needed.   From: John Denhardt <jdenha...@firesprinkler.org> Sent: Thursday, May 11, 2023 10:17 AM To: Discussion list on issues relating to automatic fire sprinklers <sprinklerforum@lists.firesprinkler.org> Subject: [Sprinklerforum] Re: Fire Pump Drains   Craig - 100% agree. All systems need a main drain piped to an acceptable place of discharge that can handle full flow with the fire pump system (if provided) operating.    There should also be a method to drain the fire pump system piping.  John John August Denhardt, P.E. Vice-President Engineering and Technical Services American Fire Sprinkler Association  301-343-1457 On May 11, 2023, at 12:12 PM, Prahl, Craig <craig.pr...@jacobs.com> wrote:  I’m not sure I understand the correlation between system drains and the subject of this post?   There needs to be a drain from each sprinkler system valve, wet, dry, PA or Deluge, doesn’t matter.   There needs to be a drain in the fire pump room.    Craig Prahl | Jacobs | Group Lead/SME – Fire Protection | craig.pr...@jacobs.com | www.jacobs.com 1041 East Butler Road   Greenville, South Carolina  29606 CONTACT BY: Phone 1-864-676-5252, Email or MS TEAMS     From: Brian Harris <bhar...@bvssystemsinc.com> Sent: Thursday, May 11, 2023 11:23 AM To: sprinklerforum@lists.firesprinkler.org Subject: [EXTERNAL] [Sprinklerforum] Fire Pump Drains   Installing a Dry system fed from a pump and while running the 2” drain outside the building from the dry valve it dawned on me we never show a drain for the wet system. I’m assuming that’s taken care of from the casing drain on the pump?   Brian Harris, CET BVS Systems Inc. bvssystemsinc.com Phone: 704.896.9989 Fax: 704.896.1935       NOTICE - This communication may contain confidential and privileged information that is for the sole use of the intended recipient. Any viewing, copying or distribution of, or reliance on this message by unintended recipients is strictly prohibited. If you have received this message in error, please notify us immediately by replying to the message and deleting it from your computer. _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to sprinklerforum-le...@lists.firesprinkler.org

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