I will be doing 20,000sq ft of blacktop asphalt. Dust/Grime softwash using Water 50:1 EBC misted over surface to aid in suspension of dirt and grime and a firehose to rinse. Hot water ball valve no pressure removal of some bird feces stains. We specified oil stains and other chemical spills wont be removed as anything needed to accomplish that will likely damage the asphalt it self however most soda stains and general buildup should rinse off easily as in our onsite demo.