Hi. I'm looking for an answer on testing chlorine relative to CYA.
Do the free chlorine tests compensate for the amount of CYA in the water? I understand there is a CYA/chlorine chart showing the required amount of chlorine at various CYA concentrations. However, most OTO test kits show an ideal chlorine range of around 1.5-2ppm. Why is this? If I run CYA at around 50 or 60, the ideal chlorine ppm would be off the chart if the OTO test doesn't compensate for CYA.
Do the free chlorine tests compensate for the amount of CYA in the water? I understand there is a CYA/chlorine chart showing the required amount of chlorine at various CYA concentrations. However, most OTO test kits show an ideal chlorine range of around 1.5-2ppm. Why is this? If I run CYA at around 50 or 60, the ideal chlorine ppm would be off the chart if the OTO test doesn't compensate for CYA.