I have an AERT ChoiceDek Premium Plus composite deck which I purchased from Home Depot well over a decade ago, likely 2002 or 03. I was part of the class action lawsuit. They sent out a crew to clean my deck, but the mold came right back! They eventually refunded the entire purchase price of the deck. I then began purchasing & using Corte Clean from my local Lowe’s, lumber or hardware stores. This product keeps the mold at bay, so I have decided to keep my deck. They no longer carry it, so I began purchasing it directly from the company in 2013. I use Corte Clean spring and fall to keep my deck clean. The only problem we have had is related to the hard water here in Davidson, NC, dissolving the product when used at maximum strength, which has now been resolved with warm water and using less Corte Clean powder per gallon of water to keep my deck clean. Great product & customer service!