Model #96515513 motor makes noise but it takes too long to begin pumping
Grundfos pump model#96515513. When pump originally installed would activate quickly and increase water pressure. Now the motor comes on for a period up to 30 seconds (not the same sound as when it is pumping) and eventually the pumping kicks in. Once it is pumping correctly it does not stop until water is turned off.
Garden - Grundfos - MQ3-45 1 HP Pressure Booster Pump