My opinion is that you unless you are having some problems, you can use a cheap OTO kit for daily testing and then use the good kit once a week or so to check other levels. Check chlorine every day, pH every day until you get it where you want it and then a couple times per week after that, alk a couple times per month after you get it where you want it, CYA a couple times per summer after you get it where you want it.

If it were my pool, I'd bump the TA up to about 100. Also, pH is ok at 7.2 but you don't want it to drop lower.

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