Why a Grinder Pump?
Grinder pumps are selected, instead of gravity sewers, when you need more freedom to run sewer up hills, through isolated flat lands, or in areas with high water tables. That’s because they work like a mini pump station, and the wastewater is then pushed to follow the contour of the land.
How does it work?
A complete grinder pump unit includes the pump, tank, and all controls packaged together. They grind most solids into fine particles, which then pass through the pump and smaller diameter pipe lines. Using plumbing facilities in your home automatically activates the grinder pump, which has an annual energy consumption of not much more than a 40-watt light bulb.
James City Service Authority
Grinder Pump Program