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I'm really surprised that (a) your pool filled with tap water that cloudy, and (b) that cal hypo cleared it that fast. Cal hypo, used optimumly, has some side effects that can produce VERY clear water, but I still very surprised, and rather curious about what was going on.
Regardless: cal hypo is unstabilized, so you'll need some stabilizer. You can get it two ways. You can add it directly, OR you can add it chemically bound to chlorine. Leslie's sells Chlor-Brite dichlor, which is 55% available chlorine, but about 50% stabilizer. (I know the percentages don't add up -- but they are correct. It's a long complicated story, that goes back to how available chlorine was determined 100 years ago.) Anyhow, if you add 10 ppm of chlorine to your pool with cal hypo, you *also* get 7 ppm of calcium and no stabilizer. If you add 10 ppm of chlorine to your pool with dichor, you get no calcium but 8 ppm of stabilizer.
From your photo, I see you have an Easy Set. We've discovered here that the Intex metal frame pools are usually quite durable, but that the Easy Set (inflatable ring) pools are not. The problem seems to be that birds, cats, or squirrels get on the donut and puncture it. You probably want to make sure you know where your patch kit is, and be ready to use it. Also, over inflating the ring can result in OVERpressure on hot days, which is another source of failure.
Good luck!
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