Description

You can use FHC to calculate sprinkler, deluge, or cannon systems when they are enhanced with foam. For the most part, you can use FHC as you would for any other system, which is just water-based; however you will need to consider how the foam is injected into the water, which is usually with a foam proportioner and the pressure loss across this device.  

Issue 2 (July 25) Updated to incorporate NFPA 11 requirements.