Which side of the fire pump discharge should the bypass be located?

The bypass should be located on the discharge side of the fire pump. This is crucial for several reasons. Positioning the bypass on the discharge side allows for the necessary flow of water to be redirected back into the system, assisting in maintaining the pressure while the pump is operating under various conditions, such as during testing or maintenance.

Additionally, having the bypass on the discharge side ensures that any excess flow can be managed without compromising the overall water supply to the system, which is vital during emergency situations when the fire pump needs to engage and deliver water to the sprinkler system efficiently. This arrangement further prevents any potential damage to the pump that could occur if the bypass were located elsewhere, ensuring optimal performance and reliability of the fire suppression system.