Scotts Outdoor Cleaner Patio & Deck with ZeroScrub Technology Concentrate 0.5 gal.

It's amazing how clean the siding looks after day 3 and having used it last year how much cleaner the siding stayed over 12 months. Virtually no mildew at all

thought this deserved a review, moved where there was a small 8 X8 deck, think was made with old wood, it was black it so many places, i did try pressure washing didnt help at all, so i thought i would try this last hope, didnt mix 50/50 used less water, sprayed twice didnt see results till a good week later, funny how it takes time to see results, deck looks 70% cleaner, going to spray a few more times, think i may achieve 100% clean with a few more sprays.