How to Unclog the Two Drain Holes at the Back of the Sunroof?

[CarterLynn]

Use an air pump gun, aim it at the drain holes of the two front drainage pipes inside the sunroof, and blow through the pipes with high-pressure air. Use a rag to block slightly to avoid excessive air pressure. Use a syringe to flush the drainage pipes, which can effectively unclog them. Practical experience has proven this method to be highly effective and easy to implement.