Im ran out of cya reagent so I can only test the cya with a test strip right now, it shows the cya to be 50. I have been targeting my fc to 10. I have been testing with oto and strips, i try to check it 3 to 4 times a day, the first day we used 4 packs of super shock 73% by the next morning it showed no tc or fc then I added 12 gallons of 6% bleach next morning no chlorine, 3rd day added 3 bags of super shock 73% and next morning it held the chlorine and has been holding it since then. Yes we used a leaf gulper to remove leaves, pump has been running 24/7 for a week now, we back wash when pressure gets to 25 or the return jet pressure slows which is probably once a day at the moment. We have vacuumed once but didn’t get much, also been brushing daily, most of the stuff is floating in the water. Lots of dead white algae.