Sketch of a common sewage grinder pump used in a modern basementBuyer's Guide for Septic & Sewage Grinder Pumps

  • SEWAGE PUMP BUYERS GUIDE - CONTENTS: Septic grinder pumps - where to buy, guide to brands of septic pumps and septic grinder or ejector pumps - buyers' guide. Where to buy Septic tank pumps, septic grinder pumps, septic effluent pumps. What type of septic pump should you buy?
  • POST a QUESTION or READ FAQs about buying sewage pumps and grinder pumps: brands, models, pump supply sources, pump parts suppliers
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Sewage pump or septic pump buyers' guide:

This article offers buying advice for Septic Grinder Pumps, Sewage Pumping Stations, & Septic Pump Alarms. We discuss the types of sewage and sewage grinder pumps available and we provide where-to-buy information for sewage grinder pumps: contact information for sewage pump brands, models, manufacturers, and suppliers.

An Environment One Corporation grinder pump schematic sketch is shown at the top of this article.

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What Brand of Sewage Ejector Pump Should I Buy? - Sewage Pump Selection Guide

Zoeller Shark series sewage grinder pumps models 803/805/807 main parts (C) adapted

[Click to enlarge any image] Above, main parts of a sewage grinder pump, adapted from Zoeller's Shark series 803-805-807.

Article Contents

What's the difference between a septic grinder pump, sewage grinder pump & sewage effluent pump?

The general name for these pumps is sewage grinder pumps if they are intended to grind and move black water or sewage. A sewage grinder pump is synonymous with a septic grinder pump.

If the pump is intended only to move clarified effluent, say from a septic tank to a drain field the proper term to use is sewage effluent pumps.

Defintion: Sewage effluent pumps, also referred to as sump pumps and dewatering pumps, are designed to move liquid wastewater, not solid sewage waste. Sewage effluent pumps typically use an impeller assembly that can handle small solids up to about 3/4" but not larger solids such as feces. Toilet paper will probably clog an effluent pump as will large solids. An effluent pump is typically used to lift clarified effluent from a septic tank pumping chamber up to an efflent disposal mound, raised bed, or soakbed that is at a higher elevation.

What can be confusing is that a data sheet for some sewage effluent pumps may include references to both effluent/sump/dewatering applications and [light-duty] sewage applications, but note that the pump models will be different.

Here is what a large pump manufacturer says about effluent/sump/dewatering pumps:

*Effluent systems should specify that pumps should not handle solids exceeding three fourths inch (¾") in order to prevent large solids from entering leeching fields, mound systems etc. (Model 49 and 70 Series have 3/8" solids capability, 50, 90, 140, 145/4145, 151, 371 and 372 Series have ½", 130 Series has 5/8", 152,153, and 160/4160/180/4180, 373 Series have ¾".) Where codes permit, sewage pumps can be used for effl uent systems. Nonautomatic pump(s) with external level control recommended for septic tank effl uent applications. - Zoeller (2009)

Definition: Sewage ejector pumps, or sewage grinder pumps, are designed to pump residential or household sewage or blackwater to a destination such as an elevated septic tank or to a city sewer (for homes whose lower baths are at a depth below the level of their sewer line). A sewage grinder pump uses an actual grinder blade assembly that is metal, sharp, and designed to macerate solids such as feces and toilet paper: flushable wastes. Note that even a grinder pump may choke on tampons or even dental floss.

More details about types of sewage pumps are

List of well-established & widely-used septic pump & sewage grinder pump brands

Here are the widely-used sewage & septic pump manufacturers and suppliers. Contact information for each of these companies is given further below.

Directory of Producers of Septic Pumps, Sewage Pumps, Grinder Pumps, Effluent Pumps: Contact Information

Several sewage pump manufacturers produce a separate line of commercial or municipal sewage grinder pumps from those used in residential application. CONTACT us to add pumps to this list. No fees or costs are involved. has no financial relationship with any company, product, or service discussed at this website.

What Type of Septic Pump or Sewage Pump Should I Buy?

Sewage pump

The type of sewage pump you need depends on how it will be used. The pumps at left may have been a misapplication for this municipal lift station ,which may explain why we found these discarded units on the site. Septic pump systems vary by these parameters:

Duplex septic pump installation

Septic pump manufacturers provide a pump selection and sizing table that is used to guide the installer in selecting the proper pump. We've seen sewage handling systems where the wrong type or wrong capacity of pump was installed, sometimes as an attempt to "save money."

Two types of sewage pumps are used in residential applications, sewage grinder pumps or sewage ejectors pumps, and non-clogging sewage ejector pumps. We describe these next at Septic Pump Duplex System Designs or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.


Septic Pump Articles


Continue reading at SEWAGE PUMP DAMAGE & REPAIR or select a topic from closely-related articles below, or see our complete INDEX to RELATED ARTICLES below.

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SEWAGE PUMP BUYERS GUIDE at - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


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