I was wondering if there is a relationship between my sand filter gauge and the pressure markings on it and a minimum speed for my intelliflo VS pump? Is the "start" arrow where my minimum pressure should be when the pump is on? Also, my "clean" pressure is well above the 20-25% recommended based off of a minimum ~10psi if going by the gauge. I have been tinkering with my speed timings and I just want to make sure I am not being less effective when the pressure is below that first mark. Thanks!
