I've had really good luck using tablets and I like the idea of a chlorine feeder.
I'll most likely go with a Pentair Rainbow unit, and I was set to buy the clear 320 inline model, but I've heard at low speeds it doesn't work well. I run my Intelliflo at around 1000-1200rpm, it's around 20k gallons.
Would an off line model be better for me? I was also looking at the 300-29x and the 300 model from Pentair.
Any advice would be greatly appreciated.