Hydrant available flow estimate
Uses a common training estimate based on static pressure, residual pressure, test flow, and target residual.
Water supply
Hydrant flow and available GPM calculator
A water supply landing page for firefighters estimating available flow from hydrant test numbers and routing users to FireOps Calc.
Training note: These web tools are for education, practice, and estimating. Use your department SOPs, instructor direction, and manufacturer guidance for live operations.