How does it work?
The majority of the collection system works on gravity. The wastewater flows into the underground pipes at an elevated level, then follows the downward direction of the pipe to its final destination at the Wastewater Treatment Plant (WWTP).

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1. What is the collection system?
2. How does it work?
3. What is a lift station?
4. What is a combined sewer?
5. What is a storm sewer?
6. What causes a sewer to back-up?
7. Who should I call if I'm having a sewer problem?