ClearWater 1 Litre Algaecide is a highly effective way to eliminate algae and prevent it from regrowing. Although algae doesn't do direct harm to swimmers, it looks deeply unpleasant and provides an ideal breeding ground for germs and bacteria. Getting rid of swimming pool algae, a microscopic plant that comes in many guises and adores the nutrients found in pool water couldn't be simpler. If algae forms on or below the water's surface you simply pour the recommended dose of algae remover into the swimming pool. Ideally the algae killer should be applied where water inlets are situated so that it disperses evenly and effectively throughout the water. The amount of algae treatment used depends on the size of an above ground swimming pool and the severity of the situation. As with all chemical products, instructions and warnings should be carefully followed and heeded. Thankfully ClearWater 1 Litre Algaecide is clearly labelled with all of the necessary guidelines.