OMG!!!! Corte Clean is amazing. We have had major problems with dark stains on our composite decking. We have tried 5 different cleaners and nothing got rid of them. I was getting frustrated because lets be real... composite decking is not cheap and ours looked dirty and gross. Then I found out about Corte Clean. So I figured Id give it a shot after reading and seeing before and after pictures on the website. I am estatic how well it cleaned my deck. My deck looks brand new! Ordering again to be prepared for a fall cleaning. Thank you, thank you, thank you!!!