There are still many homes with cast iron drain pipes. One of the biggest reasons for the line to fail is because over the years the kitchen drain has stopped up and the owner did not want to call a plumber to snake the drain. In order to save money, the homeowner will pour acid down the drain. It solves the immediate problem and so the homeowner is encouraged to repeat this every time the drain clogs. Over time the acid will eat a hole in the bottom of the pipe and make it impossible to clear with acid or using a snake from a cleanout. In this case, you have to replace the line and it costs thousands.
Kitchen drains are very susceptible to grease clogs. Even grease residue from cooking will find its way into the drain and collect. I recommend using Bio-Clean monthly to keep kitchen drains running clearly. Bio-Clean is beneficial bacteria that will digest grease in your sewer line.
