Regarding hydraulic calculations for Combination Standpipe & FHV Standpipe.
I am designing a core & shell system for a high rise building, in order to find the residual pressure on each floor, what is the correct process?
Each floor will require dual PRVs 2-1/2" that feed into a 4" manifold that supplies the floor riser. Dual PRVs are required due to GPM demand of the sprinkler system.
I have attached my risers details.