What is Collection System Debris And Why is it a Problem?

Collection system debris is the material that is removed from the sewer system during pump station wet well cleaning, sewer line cleaning, and blockage removal. It contains personal hygiene items, grease, rags, wipes, sand/gravel (grit), and wastewater. Grit is a special problem. These materials can damage mechanical equipment both in the collection system and at the treatment plant. Accumulated material reduces pipe and tank capacity, clogs piping, and increases wear on pumps and valves, significantly increasing maintenance costs.