From what I have been reading, there are three ways to reduce CYA:
1- Drain pool and dilute mixture by adding water
2- Buy an expensive CYA reducer with questionable results
3- Close pool for winter and when reopening in Spring CYA should be reduced
Is this correct? Is the third option definitely true? I ask this question because I am located in New York and our pool season is approx 4 months. Being this said, if I get my CYA too high, and maintain the chlorine at the right levels based on the best guess chart, should I just wait until I close the pool to reduce my CYA level?