You can run without the Frog, while you are adding the bleach.

I don't think the Frog is the problem, and it sounds like it may be a better than average trichlor feeder. You pay a premium for it, but if it doesn't bother you, it doesn't bother me.

It's unlikely that the Frog is actually helping you run lower chlorine levels. But, I looked at the patent, and I think it's not impossible -- but the mode of action is probably not what they say. However, my guess is the DE filter helps more.

But, I'm going to make a suggestion: instead of worrying about CC levels, concentrate on whether chlorine levels hold from 8PM to 8AM. If you lose more than 1 ppm of FC overnight., you probably STILL need to shock. If you do NOT, you can probably move on to just enjoying your pool