Clements Sodium Hypochlorite / Red Label 10/11% 5L

Hypochlorite Solution is highly corrosive and should be handled with care. This deck and patio cleaner is the strongest available cleaning product and will yield results straight away.
This solution should be diluted 5 parts water and 1 part hypochlorite at the least to yield good results.
Furthermore protective gloves and eyewear should be worn at all times when using sodium hypochlorite as it is highly corrosive and can be dangerous to plants and animals.