looking for the proper way to clean a deck for future customers. I like to try a different method. I looked at some posts, but cant seem to find an oxygen bleach mix nor a oxalic acid mix. Also which one would be better to use? The reason im asking is that last week i use a mix of SH and Tsp. But the deck i did had a white film appear that was hard to remove and showed up even worse when it dried. Thank you for any help in advance