By Chris Edmondson

 Section 712 of the International Plumbing Code (IPC), Section 712, places a burden on the shoulders of engineers.  You have to design the sewage pit or basin that collects the sewage and houses the pump(s).  To do that properly, you need to address the following questions:

 How big should the basin be? According to Section 712.3.2, “The sump pit shall be no less than 18