Why 3 PPM of Free Chlorine is Not the Ideal Level

Is 3ppm the ideal chlorine level? It used to be. But new research may make this industry standard Free Chlorine baseline a thing of the past. In fact there is no ideal Free Chlorine level when you factor in the CYA level of a pool. Leslie’s Pro: Pool Service Pro, open a Wholesale account today! Customer referrals, free cleaner repairs, free water testing, open 7-days a week. It is fast and easy to become a Leslie’s Preferred Pool Care Provider. https://lesliespool.com/commercial-service...