Thanks!! That looks like it may be the answer. I read somewhere that I may need to be careful with the pressure because I have a DE filter. Is there any reason to believe that it would not be okay to run a pump on low speed because of this?
My motor is screaming at me and I'm planning on replacing it with the most energy efficient option that still functions well. The pool is 18,000 gallons. Would you guys recommend a 2-speed? Here is a pic of what I have now: