What is an adequate size for a reservoir in a system with a 20 gpm pump?

In fluid systems, the size of a reservoir is crucial to ensure adequate operation, especially when considering the flow rate of the pump. A reservoir must accommodate the pump’s flow rate and provide additional capacity to account for fluctuations in demand, system expansion, and potential losses.

In this case, with a pump capable of delivering 20 gallons per minute (gpm), a reservoir size of 60 gpm is appropriate. This size allows for three times the flow rate of the pump, which is beneficial for maintaining a steady supply of fluid and preventing the pump from becoming starved in cases of sudden demand surges.

Having a reservoir larger than the pump's flow rate ensures that there's enough volume to support continued operation without interruption, especially in systems that might experience varying operational conditions. A 60 gpm reservoir provides flexibility and sufficient volume to manage these scenarios, making it a suitable choice for a system designed around a 20 gpm pump. This added capacity helps in managing situations where not all of the pumped fluid is utilized immediately, providing a buffer and ensuring efficient system operation.