I am seeking help with a flow question. When I run my new Intellipro VS pump at 2600 rpm for a 12 hour period I find that my flow reduces gradually over time by quite a bit. If I turn off the pump and restart it at 2600 rpm the flow resumes to the expected rate and then again declines after time. I use a cartridge filter and psi on the cartridge container remains at 20 psi.
My heat pump will turn off due to lack of flow over. Also, I note that my deck jets only spray half the expected normal distance after time.
Could someone help pointing my thinking in the right direction so that I may figure out why my flow rate may be decreasing over time?