Sewer systems are essential infrastructure designed to transport wastewater and sewage away from homes and businesses. They consist of a network of pipes, pumps, and treatment facilities that collect and treat waste before releasing it back into the environment. Properly functioning sewer systems help prevent pollution and protect public health. There are two main types of sewer systems: combined sewers, which carry both stormwater and sewage, and separate sewers, which have distinct pipes for each. Treatment plants process the collected waste, ensuring that harmful substances are removed before the water is discharged into rivers or oceans, maintaining ecological balance.