A deck I restored last week with nothing more than a pump sprayer, deck brush, sodium percarbonate and oxalic acid and a garden hose. : r/pressurewashing
Using Oxalic Acid to Brighten a Deck - YouTube
New house, washed w Olympic deck cleaner splotchy, stain now or wash again : r/Decks
EnviroChem - EnviroChem's Deck Cleaner AUSTRALIAN MADE for decking and all exterior timber. Removes tannin stains, grease and dirt, restores and cleans stained timbers. Removes moulds, algae and mildew. EnviroChem's Deck Cleaner