Older clay or thin corrugated pipes can collapse under the weight of the soil or a heavy vehicle driving over them. 3. How to Unclog an Underground Gutter Drain
To avoid recurrence, experts at The Gutter Experts and Modernize recommend:
Inserting a garden hose into the drain at full blast to stir up and wash out sediment. Minor sediment or shingle grit.
Downspouts pulling away from the underground adapter due to water weight or pressure. 2. Primary Causes of Clogs