In July 207 I installed a 24’x16′ square foot Trex deck (a replacement of the existing wood deck ) that is accessible by double French Doors off the kitchen and extends past the 8’w x 6’h casement windows by the Family Room. It is a beautiful setting and highly visible from inside the house. It was a $7,000 investment and I went with Trex mainly because of their longevity in the business. It was a beautiful addition until this summer of 2008, only one year after installation. Mold started appearing and ended up covering the entire deck and steps with in a couple of weeks. During this time I tried several products at the recommendation of Trex and Home Depot. None of these products did any good. In fact these products did not remove any of the mold. The appearance of the deck was becoming very depressing and the mold was getting worse every day. Meanwhile my wife was searching the Internet for information and she began to read that your product, Corte-Clean, worked. I ordered a three pound container and it worked very well. I then ordered another six ponds to finish the deck with and it worked very well. also, the mold was gone in the matter of a couple of evenings work. You can’t imagine how important this was to our well being since the other products were not working, the mold was terrible to look at and I was considering tearing off the deck. Thanks so much for your help! M. Sharp Davenport, IA