Grinder Pumps

Grinder Pumps and Low Pressure Sewer Systems (LPS)

Grinder Pumps and Low Pressure Sewer (LPS) systems are a great alternative to conventional gravity sewer lines and are more feasible in established subdivisions as well as along the shores of a body of water like Lake Lanier. Typically, grinder pump sewer force main lines are composed of HDPE plastic and are 2.5-inches to 3-inches in diameter. Each home owner purchases and installs an individual grinder pump and connects the pump’s service line onto the City-owned force main at the street right-of-way (ROW). The City owns and operates the common force main inside the ROW, while the homeowner owns and operates the service line and the grinder pump itself.

Allowable progressive cavity sewer grinder pump brands include:

  1. eone Grinder Pumps Model #DH071
  2. Flygt Xylem Grinder Pumps Model #MF 3068.175
  3. Keen Grinder Pumps Model #KPCG-21SL

Contractors who have successfully installed this type of pump for homeowners include but are not limited to:

  1. Applewood Services –
  2. Amos Backhoe Services –
  3. Townley Construction –

Cumming Utilities’ Grinder Pump and Low Pressure Sewer Specifications:

  1. Simplex Sewer Grinder Pump Station Drawing
  2. Grinder Pump Connection to Common Forcemain Drawing
HDPE Sewer Pipe

Educational Videos:


What does it cost to connect to City sewer?

Total Cost

Total cost to purchase sewer capacity and install a grinder pump was approximately $15,000 as of June 2020.

Grinder Pump Web Sites:

  1. Eone
  2. Flygt-Xylem
  3. Keen

List of Cumming subdivisions or roadways with Low Pressure Sewer available:

Business Drive
Conley Drive
Delamar Subdivision
Echols Road
Fence Rose Cove
Kemp Drive
Lake Astoria
Moorings Way
Rebel Road
Ridge Road
Shady Cove Road
Williams Circle