Anybody else make their own?

[Cracker]

Time to clean the decks outside. Instead of buying the deck washing stuff at Home Depot, I bought the Sun Oxygen Cleaner for $5 and will be using that. It is sodium percarbonate (turns to hydrogen peroxide with water then disappears into the environment without harm) and sodium carbonate (washing powder, mother of sodium bicarbonate but a bit tougher). It says to mix the solution and wet the decks with it, let it sit, then rinse it off. I think I can do that.