Whether you’re a novice painter or a seasoned pro, one thing is for certain: you’re going to get a fisheye now and then. Also known as craters, these tiny surface imperfections will occur anytime foreign contaminants find their way into your paintwork, despite all the best efforts.

Clean compressed air and conscientious work habits will go a long way toward the prevention of the problem, but still, you’ll likely be subject to the occasional fisheye. They oftentimes necessitate a costly redo, but our friend Dave, an accomplished restorer in Visalia, California, showed us this neat trick to fix ’em without starting over. We’ve used it to great success. Try it; it should work for you, too.