Need some suggestions. I've had an issue with FC for about 2 years. Last year I started getting help here and things have improved dramatically for me. I had a tremendous amount of CC and organics and was able to clear that up last year. So far this year I have not seen any CC and I think I've got it pretty well balanced. The problem is that I still am seeing a relatively low FC level. I used mostly Bleach last year. To start this year, I'm using TriChlor tabs with an inline feeder, which is 5yrs old. I've put 4 jumbo tabs in and have the dial wide open. It seems to me that I should be seeing a much higher level of FC in the water at this point, like I did when the pool was new. When it was new I only used 1 or 2 tabs. I was never able to get the FC much higher last year either, unless I had recently dumped bleach in. Why can I not get a higher FC level with the feeder anymore?