Well are old cartridge filter died and it took a week but we put in a sand pro model 4511 it has a 3/4 motor. But in that week the water turned black added a gallon of bleach it turned green added another gallon it turned grey and has stayed there. how long before it really kicks in? ph is 7.2 down from the 8.2 it jumped to and yes I know bad test color but the chlorine is off the chart is this a pump issue( new filter on pool for 3 days or chemistry