We are manufacturers of Sodium hypochlorite(5-6%) and sodium hypochlorite(10-12%) in Chennai. In terms of pure chlorine concentration with respect to gm to gm in swimming pool sodium hypochlorite has the greater chlorine purity when compared to tcca or calcium hypochlorite. In additon to the above parameters sodium hypochlorite offers a better solution in terms of calcium harndess/ cyanuric acid levels despite higher tds levels caused because of chlorides which wont impact the quality of water for chlorination.