Boat docks whether they are wood or concrete become very dirty and grimy. Often at the bottom of a hill where dirt and debris end up after heavy rains. Add in the traffic that takes place throughout the summer months. Lake water can lead to heavy algae buildup if not cleaned often. After some heavy rain, this boat dock was covered in thick grimy mud. Making it unusable and unsafe for pedestrians entering or exiting a boat. By removing the heavy mud and applying a pretreat we were able to brighten up the concrete. Finishing with a post treatment of our solutions it should offer an extra measure of cleanliness to the boat dock area.