Can a spa pump have a 4 horsepower motor?
Can a spa pump have a 4 horsepower motor? When faced with a spa pump owner convinced they have a 4 horsepower motor but the part number calls for a lower HP, we usually refer to the amps rating. When labeling a motor the maker can adjust the service factor but they cannot hide the electric usage of the motor. How is the HP of a spa pump calculated? Before we get too in deep in the minutia of motors, let’s talk about the crux of the matter – the service factor. The motor has a listed HP but its...