Leaves, twigs, and mulch are the most common offenders in surface drains.
Never use acid-based cleaners (sulfuric) outdoors – they can damage concrete and harm soil. outdoor drain cleaner
Whether it’s a sudden downpour turning your patio into a pond or a driveway drain that’s seen too many autumn leaves, a clogged outdoor drain is a headache. Unlike indoor clogs—which are usually just hair and soap scum—outdoor blockages are a battle against nature. Dirt, silt, roots, and debris require a different strategy. Leaves, twigs, and mulch are the most common