It depends, but probably not longer than a week during summer. In years past, I used the RB320 on kiddie pools that I serviced weekly. I removed several Hayward units, because I found that the feed rate couldn't be regulated.
The ChlorBrite is dichlor; the tabs are trichlor. Both add lots of stabilizer. You probably need to get a K2006 test kit, check your CYA level . . . accurately . . . and then make some decisions about your pool.I have . . . Chlor Brite Granular Chlorine . . . . and In The Swim 3 Inch Pool Chlorine Tablets
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