What process should be followed for swimming pool water treatment?

1.0 Itspic https://itspic.com/ What process should be followed for swimming pool water treatment? https://itspic.com/image/What-process-should-be-followed-for-swimming-pool-water-treatment.afwfM 850 354 https://itspic.com/images/2020/10/27/afwfM.md.jpg photo clearion092 /clearion092 https://itspic.com/images/2020/10/27/afwfM.md.jpg 500 208