What pressure should normally be maintained in the fire hydrant line?

The normal pressure in a fire hydrant line typically ranges from 20 to 100 psi (pounds per square inch), with most systems aiming for around 60 to 80 psi to ensure adequate flow and pressure during firefighting operations. This pressure can vary based on local regulations and the specific design of the water supply system. It's important to maintain these levels to ensure that firefighters can access sufficient water in emergencies. Regular inspections and maintenance are essential to ensure the hydrants function properly.