No that I am aware of per NFPA - however, local codes my be different.

Greg McGahan

Genesis Fire Services, LLC.




________________________________
From: Tim Easter <[email protected]>
Sent: Wednesday, September 25, 2024 8:39 AM
To: Discussion list on issues relating to automatic fire sprinklers 
<[email protected]>
Subject: [Sprinklerforum] Re: Water tank return line

I understand it's allowed, but is it required? Thank you.

On Wed, Sep 25, 2024, 9:16 AM Hinson, Ryan 
<[email protected]<mailto:[email protected]>> wrote:

Return to source or return to reservoir is specifically allowed both for test 
header- and pressure relief valve discharge per NFPA 20 (2022) Sections 4.20.6, 
4.20.7, and 4.20.8 with appropriate provisions.



Ryan L. Hinson, PE*, SET**  \  Burns & McDonnell

Associate Fire Protection Engineer \ Upper Midwest Region

O 612-900-3755 \  M 763-688-4045 \  F 952-229-2923

[email protected]<mailto:[email protected]>  \  
burnsmcd.com<http://www.burnsmcd.com/>

8201 Norman Center Drive, Suite 
500<https://www.google.com/maps/search/8201+Norman+Center+Drive,+Suite+500+%5C+Bloomington,+MN+55437?entry=gmail&source=g>
  
\<https://www.google.com/maps/search/8201+Norman+Center+Drive,+Suite+500+%5C+Bloomington,+MN+55437?entry=gmail&source=g>
  Bloomington, MN 
55437<https://www.google.com/maps/search/8201+Norman+Center+Drive,+Suite+500+%5C+Bloomington,+MN+55437?entry=gmail&source=g>

*Registered in: AK, LA, MD, MN, PA, TX, & UT

**NICET IV - Water-Based Systems Layout



From: Tim Easter <[email protected]<mailto:[email protected]>>
Sent: Wednesday, September 25, 2024 5:42 AM
To: 
[email protected]<mailto:[email protected]>
Subject: [Sprinklerforum] Water tank return line



Is there a  code requirement to return discharge of the fire pumps to the water 
tank?



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