NMD-80 and EF-FORTLES are effective products for cleaning your paver surfaces. These are detergent-based solutions designed for gentle cleaning. These cleaning products are brushless with a low pressure application and a high pressure rinse. Your cleaning will bring back the true colors and it will remove the haze of polymeric sand on your surface. The best application system is the EC Jet paver tool. The hose is 30 feet long and cleans up to 1800 sq. ft ^. of area. Attention ! You must connect the tool to a pressure washer of at least 2000 pounds! Available in 1 gallon, 5 gallons and 55 US gallons. Covers 100 to 200 sq. ft ^. per gallon (depending on product porosity) See for yourself >>>