I know this may sound weird but we can’t tell you how many gallons per minute your pump pushes based off of your motor alone. When asked, we reply with, “I’m not sure, but if you provide the make and model of your pump, I can review your pool pump curve.” That answer usually confuses some pool owners.
Truthfully, the confusion stems from confusing the motor for the pump, or vice versa. To some, the words are interchangeable, however, they are not. Your motor is just a single component of your pump. Think of it as the engine in your car. The word pump includes your motor but also the pump housing, impeller, diffuser, strainer basket, and lid. For this reason, it impossible for us to know the GPMs of your pump based off of the motor alone.
Now that you have the make and model of your pump, how do you determine the GPMs? The answer: a pool pump performance curve.