Just a follow up -

I have given up on these tablets from In-The-Swim, and I'll proabably just go with some Leslie's tabs next year.

For now - I'll be bleaching for the rest of the summer.

My final weeks on these el-cheap-o tablets had me putting 8 or 9 tablets (a full charge) into my Rainbow 320 online feeder with the feed rate on MAX.

I never got my FC above 1.5, and my CC was always 0 - - - so I don't have any issues with nasties in the water. I started this 'experiment' (if you want to call it that) with a perfectly clear pool after shocking with bleach, and getting the water in perfect balance.

After about 5 or 6 days, I was getting the same ole problem of low FC, and eventually started to cloud a bit.

Back to bleach for now -

My advice - if you decide to use Tablets for your pool, use a quality tablet purchased from a local pool supplier that will back the product up in case you get a bad batch.