i checked and the level is fine. I still have cloudy water. Monday evening I vaccumed the pool to waste was pretty dirty my strainer plugged a few times but cleaned it pretty good. then I refilled and put in 9 gallons of shock tested after 4 hours and my readings were FC - 19.5 CC - .5 ta - 170 Ch - 140 ph 7.2 and cya 45. When i was cleaning the pool the strainer had white stringy and tan stringy stuff plugging the strainer more tan stuff than white. My pool looks like particles are floating in water? my filter is running 24/7 could my filter be messing up? should i try the D.E. filter test? also when I back wash very little water comes out what could be the problem there?