I bought a gallon bottle of your concentrate for use around our lake house. I was amazed at the effectiveness of the product. I had a bad mold situation on our pontoon boat carpeting. I soaked the carpet and let it dry. Once dry I used a stiff bristle brush to loosen up the residue and then vacuumed up the loose residue. The carpeting stayed mold free for over a year. I also used your product on some green mold on vinyl siding on the north side of our house. I just sprayed it on with a pump style garden sprayer and let it sit. I had to do nothing else. The green mold disappeared. That was 2 years ago and it is about time for me to do it again. I have found that your product also works extremely well on our wooden deck and surrounding cement pavers. I want to thank you for developing such a great product.