Tried search, didn't see any info. The drain holes toward the hinges, or front of the car are open. The holes at the rear of the door have the plastic clip I've read about in another thread. The DS door seems to hold water. Days after washing, and a dozen times of open/close, water still drips out of front drain. Do I shoot compressed air in the hole or what? The manual says to clean them, but I didn't see how to do it. Thanks for any and all help.