Concrete Patio Slabs Clean Part 2: Hypo Wash (Bleach)

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Sodium hypochlorite as it goes by its scientific name, is an industrial strength bleach packing around 15% pure bleach. Normal house hold bleach used to clean the toilet is around 3% so this stuff is a lot stronger. In this video we go through how to use it to clean a patio that is covered in a algae, lichen and other stains.