Algatec is a strong, highly effective algaecide that provides superior cleanup action with all types of chlorine and non-chlorine based sanitizers. Algatec is a strong, highly effective dual-action algaecide that quickly kills all types of green algae. The product also eradicates yellow algae and black types (i.e. algae, bacteria, and fungi biomass). Algatec has a powerful interaction with chlorine based sanitizers which helps to enhance algae cleanup and removal. However, this product does not requires or use chlorine to kill algae. Algatec quickly combats algae growths and prevents new growth due to its biostatic inhibitor function. And Algatec leaves pool water sparkling clear due to its powerful clarifying action.