Perhaps where you once lived, the house was connected to a sewer system. A septic tank and a sewer system have the same function. They are both waste drainage systems (of the sinks, toilets, bath tubs, laundry, etc.), for the house. Septic tanks are common in areas where sewer systems do not exist.™In fact, there are more septic tank systems in use than sewer systems. Before septic tanks, you may have heard of cesspools. A cesspool is covered hole or pit for receiving drainage or sewage, from a…See More