Where does your excrement go?

Answer 1

In to the sewer system where it is breaking down in water. The water is then filtered and waste matter treated and disposed of
After you flush, human waste is carried to a treatment facility by pipe systems that are generally classified according to the type of waste flowing through them. If the system carries both domestic and storm-water sewage, it is called a combined system, but sanitary sewage can be separated from storm sewage by a separate pipe network. This arrangement is more efficient because it excludes the voluminous storm sewage from the treatment plant.