Fire hydrant flow and pressure testing identifies the amount of water a fire hydrant is capable of delivering during an emergency situation. Field crews perform a mechanical test, pressure test, and flow test with every fire hydrant on a recurring basis to ensure fire hydrant flow problems are regularly identified and corrected.

Fire hydrants should periodically undergo flow testing to provide data on distribution system flow and fire flow capabilities. A meaningful maintenance program should include a record of each hydrant to track inspection and condition history.