Do you have the double scrub advantage? We do!! It is the Dirt Dropper. With dual scrub ribs, it is designed to act as a wash board in a 5 gallon bucket. This bi-directional movement of product is great for removing particulates from brushes, sponges, mitts, etc. This helps reduce scratching of finish surfaces. There is no other product out there that can be used in this fashion with long handle brushes.