Docks needs to be routinely pressure washed or they become slippery and ugly from black algae and small spills. Often they have spilt oil, fish guts, beer, fuel and even sewer tank liquids on them. Obviously you do not want anyone to slip on anything like that. So what equipment to do you need to use to have the best results.

You really need a good pressure washer. It would be best to have a hot water pressure washer if possible, but a cold pressure washer will work also. You can use a stiff bristle brush or a broom even perhaps to clean any stuck on dirt or bird droppings when using your pressure washer.