How does the unit hold pressure (the dithering)?
The pressure switch tells the controller to speed up the motor if the pressure is below the pressure setting and to slow down the motor if the pressure is above the pressure setting. IT IS NOT CONSTANTLY TURNING THE MOTOR ON AND OFF. The result is a continuous ramping up and down around the pressure set point. This “pressure dither” may or may not be visible at the gauge, but is generally not noticeable at a faucet or tap.
