Sewage grinder pump systems have components for the installation of sewage grinder pumps, also known as grinder pumps. They include grinder pumps, basins, pipe, control panels, and switches to turn pumps on and off. Pumps have a grinding plate on the bottom that shreds large particles into small fragments so the pump inlet won't clog and the waste can be pumped into a sewage system. These sewage grinder pump systems are not for use with septic systems since the small particles will not be filtered out in the septic system’s drain field and will contaminate the groundwater.