Having worked as a sales rep for Leaf Filter myself, let me say that I feel your pain. You have to get up there and clean them off or wait for a strong wind which is not likely to remove all debris up ... read more
We keep a spray bottle filled with the solution below on the counter and use it as needed. We apply sealer once a year.
•1/2 cup rubbing alcohol•2 cups water•8 drops dawn dish soap