A cesspool collapse can occur due to various factors. Tree roots are a common culprit, as they infiltrate the cesspool walls and cause structural damage. Rust and corrosion weaken the cesspool's integrity, making it susceptible to collapse. Freezing temperatures can also contribute, causing the surrounding soil to expand and exert pressure on the cesspool. Poor backfill during installation can create unstable conditions. Additionally, the accumulated weight and pressure from above-ground objects can accelerate collapse. Finally, aging cesspools are more prone to collapse as the materials deteriorate over time, compromising their stability.