Is it a high rise or mid rise? If mid rise, calc it to the FDC and be done. If a high rise and automatic standpipe, check NFPA 14. The duration is 30 minutes. So that is how you would size a tank.
Travis Mack, SET M.E.P.CAD | 181 N. Arroyo Grande Blvd. #105 I Henderson, NV 89074 www.mepcad.com<http://www.mepcad.com/> | m: 480.547.9348 AutoSPRINK | AutoSPRINK FAB | AutoSPRINK RVT | AlarmCAD Book appointment time in my calendar https://calendly.com/t_mack_mepcad ________________________________ From: Brian Harris <[email protected]> Sent: Monday, July 1, 2024 3:31:59 AM To: [email protected] <[email protected]> Subject: [Sprinklerforum] Water Tank for Standpipe We have a project where the water supply has degraded a good bit since installation was completed. Sprinkler system and pump test all pass but the standpipe test runs out of water. Only thing I can think of to help would be a water tank but how would you even size one since the “duration” of a standpipe test is open ended? Any other thoughts? Thank you, Brian Harris, CET BVS Systems Inc. bvssystemsinc.com<http://bvssystemsinc.com/> Phone: 704.896.9989 Fax: 704.896.1935
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