HASS (Hydraulic Analyzer of Sprinkler Systems) was developed by mathematicians and registered professional engineers and was first licensed in 1976 as a tool for easy use by engineers, sprinkler contractors and reviewers, and still leads the industry in calculations 30 years later!!!
HASS gives you the tools you need to determine water supply adequacy based on system demand and distribution piping. With HASS, you can perform hydraulic analysis in accordance with NFPA 13, 13D, 13R, 14, 15, 20, 24, 750 and other standards, calculating any connection of nodes and pipes. And you receive major revisions at least annually; improvements or new features at no extra charge for the duration of the license period.