When water goes down the drain, its final destination depends on whether you’re on a sewer or septic system.
“If you are on a sewer system, all of the drains in your house are connected to a single pipe that leads to the street,” says the City of Statesboro. “If you are not connected to a sewer system, the liquid wastes from your home go into a septic tank, where most of the solids settle out.”