Works great! Very quiet. It comes set up to turn on at 30 psi and off at 50 psi. That was perfect for pumping from a lake for a sprinkler system with 12 heads but not using a hose alone. It would turn on when the pressure dropped and off immediately when it came back to 50 psi then on again.... I increased the pressure to 65 which is the max (easy instructions on the cap) and now it works great for both. It hasn't lost it's prime even after several days.