Do you suffer from water can't be pumped up while the water pressure is not enough？Nowadays Seaflo team research an accumulator tanks to solve this problem.

Seaflo accumulator tanks hold a reservoir of air and water down stream from the pump. The air acts as a cushion, absorbing pump and pressure fluctuations, smoothing the flow and making the system quieter. Accumulators allow the pump to reach shut-off pressure more smoothly which reduces the on/off cycle which gives better control of hot water delivery.