How much chlorine should my pool be using?

[Watermom]

Stay with CYA of 45 for awhile and see how it goes. When you test in the evenings, add enough bleach to take the cl back up to around 6. See if you stay above 3 by the time you test the next evening. If you consistently find that you can't, take it up to 7. If that still doesn't keep you at a minimum of 3 by the next evening, then at that time, you can decide that you may want to bump the CYA up a little.

BTW -- High CYA/High Chlorine is no more damaging to swimsuits than Low CYA/Low Chlorine.

Actually the chart shows 10-20, 30-50, 60-90, 100-200

[DistantHorizon]

Actually the chart shows 10-20, 30-50, 60-90, 100-200

That's what I mean... say you have CYA 55, the chart doesn't have a recommendation for it... so I figured those were areas where you just have to see what happens with your specific pool, deciding whether to follow the higher or the lower recommendation.

[aylad]

To be on the safe side, I just go to the higher category.