'All Clear Pool Start' is an algaecide and disinfectant. Its Federal EPA registration number is: 9215-5. It was originally approved by EPA on 17 Apr 1975. Its registration got cancelled on 22 Jan 1991. It has a 'Danger' signal word. It has the following active ingredients: Sodium dichloroisocyanurate dihydrate. It's approved for 1 sites including swimming pool water. It is also approved for 2 pests and pest groups including but not limited to algae and black algae.