A Homeowner's Guide to Grinder Pump Systems
side sewer lateral and into the main line public sewer. When a residence is at a lower elevation than the sewer main, it requires the use of a pump to force the wastewater up to the gravity sewer main. A grinder pump works like a garbage disposal – it grinds up wastewater from a home (i.e. toilet, shower, washing machine) and pumps it into the