Hi, Hanna,
Thanks for the numbers...it appears you did them just right.
You can get your pool clear with Clorox..you won't require anything else but you'll probably need quite a bit of it.
1. Download mwsmith2's bleachcalc from any of his posts. Put it on your desktop...you'll use it all Summer.
1a. Run your pump 24/7 during the process below.
2. Using the bleachcalc, put in enough Clorox to bring your Cl up to 20-22ppm for your first dose. Measure and calculate accurately.
3. Test for Cl as often as you can and each time you do, add enough to bring it back up to 20ppm. So if you test 6ppm, add 14ppm to bring the total to 20ppm. Keep doing this as frequently as you can (two or three times daily is good....testing and adding when the Sun is down is even better.) until your water stops showing signs of algae...it may take a few days.
4. You may need to backwash your filter frequently....particularly the first day. Do it when the pressure rises more than 5psi or so from it's normal range.
5. Once your water looks like you want it and you have no indication of algae, Stop adding Cl and let it drift down to about 5-6ppm.
6. Once it gets down to 5-6, you must keep it between 5 -10ppm all the time and your algae issues will be over.
Post back with questions. Your sand is fine....don't mess with it unless you have some other reason than algae to think you have a filter problem. This whole process may take a few days....be patient and keep adding Cl.![]()

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