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Sewer Systems

Grinder Pumps

Upgrade (U-Series) Replacement Grinder Pump

E/One Upgrade - Replacement Grinder PumpThe Upgrade (U-Series) from E/One is a replacement grinder pump engineered to fit into virtually any grinder pump wet well. Universal design allows easy drop-in conversion, ready to connect. The Upgrade is a complete replacement for all of the troublesome components of a centrifugal pump, including slide rails, pump/motor, float switches, piping and motor control devices.

This model was previously known as the AMGP.

Drawings & Installation Instructions

Upgrade Drawings (PDF, 1.6 mb)

Upgrade Drawings (zipped DXF, 3 mb)

Extreme Series Pump Curve (PDF)

Upgrade Installation Instructions (PDF, 1 mb)

Download Product Specification

Recommended Alarm Panel

E/One Sentry Protect Plus 

Additional alarm panel options are available.


The grinder is designed not to jam and for minimum wear to the grinding mechanism. The Upgrade comes complete with a self-contained level control system, eliminating troublesome float switches.

The 1 1/4" slide face discharge connection is adaptable to any existing discharge piping.

The internal check valve assembly, located on the grinder pump, is custom designed for non-clog, trouble-free operation.

Units are available with a number of discharge hose lengths to accommodate a wide range of existing tank depths.

15 gpm at 0 psig
11 gpm at 40 psig
7.8 gpm at 80 psig

E/One Grinder Pump Operational and Electrical Information