I've had the thing about three years. I've tried everything you can think of from plain distilled water......which "they say" is supposed to work all by itself, to simple green, purple stuff, specific ultra sonic cleaning solution, baking soda water, vinegar, and on and on and on. I think if it was a solution issue, I would have hit on it by now. I'm open for another try or two. I wouldn't mind if it worked. There certainly isn't a damned bit of the dip style carburetor cleaner that's worth two craps anymore.
