Just want to remind anyone who hasn't done so; SLOSH YOUR TANKS. One place I saw slosh three times and another was slosh until clear. One tank took 4 qts of acetone and the other took 5 qts before they drained clear. And then I did one more qt each for good measure. I figure that is good insurance for piece of mind. The first slosh on each tank probably drained what looked to be about one tablespoon of debris. The second about 1/4 teaspoon and then a few particles until I saw no more. Don't slosh, you will be set up for an inflight engine failure. It only took me an hour and twenty six minutes to slosh.