I'm currently using an in-line chlorinator (with 3" pucks). My fc won't hold. It drops slowly over a few days. I can't figure out if i have algae or bad chlorine pucks. my water looked really good saturday but my ph was a little low so i added some ph+ to it. it imediately clouded my water and it's SLOWLY getting better. my FC was 2 saturday and cc was .5. i checked it today and fc was 0. i've put bleach in it to get it up to 4.0 which is where the chart shows it should be with cya=50.
is there a formula that shows how much bleach to add each day to maintain fc or do you just have to test it daily and use the calculator? the pucks would be very convenient but i'm about to give up on them. any thoughts?