My pool came with an automatic chlorine feeder (Hayward brand) that is plumbed between the pump and the filter -- the kind where you put chlorine pucks in and turn the dial to open or closed. I switched to BBB a couple years ago (thanks to this wonderful site!) and have not used pucks since. So the chlorine feeder just sits there in the closed position. I'm wondering if I should remove it or just leave it there? Does it affect the efficiency of the circulation system or anything? Thanks.