计算需要向泳池添加多少氰尿酸（CYA）稳定剂。理想CYA水平为30-50 ppm，以保护氯气免受紫外线降解。
Enter current and target CYA levels to calculate the required cyanuric acid dose. The ideal CYA range for traditional chlorine pools is 30-50 ppm.
CYA protects chlorine from UV degradation, reducing consumption by up to 50%. However, high CYA (above 80 ppm) significantly reduces chlorine effectiveness.
The only reliable way to lower CYA is to partially drain and refill the pool. Trichlor and dichlor tablets contain CYA, so CYA levels naturally rise with their use.
氰尿酸（CYA），也称为泳池稳定剂或调节剂，保护氯气免受紫外线降解。没有CYA，阳光可能在2小时内破坏75-90%的泳池氯气。维持30-50 ppm CYA可使氯气持续更长时间。
降低CYA的唯一可靠方法是部分排水并用新鲜水重新填充泳池。没有化学品能有效去除CYA。