What is the recommended rise or lift of a pump above the lowest water level?

The recommended rise or lift of a pump above the lowest water level is typically 1 foot. This distance helps to ensure that the pump operates efficiently and effectively without the risk of cavitation, which can occur if the water level drops too low relative to the pump's intake. When a pump is positioned at least 1 foot above the lowest water level, it helps maintain adequate suction and reduces the chance of air entering the system, which can cause performance issues. Furthermore, this clearance allows for fluctuations in water levels due to factors like precipitation, evaporation, or demand changes, ensuring reliable operation over time.

To maintain optimal pump performance, it is critical to adhere to established guidelines such as this one, which emphasizes both efficiency and longevity of the equipment.