Admit it, no-one ever wants to think about sewage in their home! Centuries ago people had chamber pots that were flung onto the street and even onto passers-by. Gross!
Today, thank goodness there's sewage pumps! They do the dirty work of handling waste day in and day out.
In fact, sewage pumps may not get the credit they deserve because they carry away this bubbling toxic ooze by pumping it out to a septic tank or city sanitary system without you ever seeing, touching, or smelling it.