I am working with a hospital with a total of 9 standpipes. There are standpipes 
that are both pre and post 1993. The original building is partially sprinklered 
and the new section is fully sprinklered. 

1. Is the intent of NFPA 25 that multiple standpipes be flowed simultaneously 
to meet the 1250 gpm demand?

2. Should the two sections of the hospital be flow independent of each other? 

3. If yes to 1 and 2, could the new section be flowed as a fully sprinklered 
building (thus 1000 gpm) as opposed to 1250?

4. How should i handle pipe schedule standpipes, if any exist?

I haven't had to deal with 5 year standpipe tests before.

Todd G. Williams, PE
Fire Protection Design/Consulting
Stonington, CT
860.535.2080
www.fpdc.com

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