From raw water intake and drinking water treatment to water distribution, flood control and wastewater treatment, Duff is a full-line supplier of reliable products for each application within the water cycle.

The experts at Duff can help you cover all eventualities, from large-scale, fully-customized pumping stations to complete prefabricated submersible pumping stations; from large axial and mixed-flow pumps that can cope with moving vast flows of surface or storm water at low head to sewage grinder pumps for pressurized systems with small amounts of water and small lifting stations for transporting effluent away from buildings—in addition to all varieties of sump, sewage and effluent pumps. We also offer a full line of grinder pumps for the toughest applications.

Featured Wastewater Pumps

While we offer many different brands, below is a selection of wastewater pumps we’re currently featuring. Check out our Pumps Line Card for our complete line of pumps–which includes pumps from Liberty, Little Giant, Barnes, Myers and many, many more–or feel free to call or email us with any questions.

Grundfos S: Sewage Pumps

S pumps form the backbone of many sewage systems. They are selected for their strength, their durability, and innovative features such as the SmartTrim impeller clearance adjustment system and the SmartSeal system for leak prevention.  The SmSewage Pump from GrundfosartTrim system used on the S-pumps makes it easy to adjust the factory-set impeller clearance and thus to maintain maximum pump efficiency. The Grundfos SmartSeal Auto-coupling gasket provides a completely leak-proof connection between the pump and the base unit of the auto-coupling system. The shaft seal is capable of rotating in either direction. When the pumps are installed with separate pipework, sludge sedimentation can be avoided by back-flushing the system at regular intervals.

Grundfos SEG: Grinder Pumps

Grundfos grinder (SEG) pumps are specifically designed for areas with no sewer systems or areas where gravitation systems are unsuitable. The high discharge pressure enables transfer of effluents and sewage over longer distances to the public sewer or sewage treatment plant. Available in single- or three-phase voltage, designed for voltage tolerances of –10%/+6%, SEG pumps can be submerged up to 65 feet.

The SEG range combines cost-effectiveness with maximum protection for a pressurized system. The SEG range is designed to reduce energy consumption and to keep downtime costs to a minimum, while maintaining peak performance throughout the system life.

Ask a Duff pump expert about our full range of sump, sewage and effluent pumps and systems.

Macerating Toilet Systems

You might not know that we offer macerating toilet systems. Liberty Pumps developed what many have said is the best product in this class.  The LibertyMascerating Toilets
Ascent II Macerating Toilet System can pump up to 25′ vertically and 150′ horizontally through a 1″ discharge pipe.

The Ascent II system features advanced RazorCutTM technology for improved maceration of waste and a removable service panel that provides quick access to the cutter area without disconnecting the plumbing. Other features include ISTTM solid state switching, a built-in alarm and LED lights with external touchpad for alarm silence and manual override. The high quality toilets feature insulated tanks to eliminate sweating. Toilet seat are included with this premium product.

Call or email the Duff experts any time to discuss all options for your wastewater applications.

With centuries’ worth of combined experience, the Duff experts possess unparalleled knowledge and expertise–all of which we make available to our customers. This is why we developed the Parts Guru, which uses a highly sophisticated algorithm to answer any question you may have about operation/startup, repair parts, pump sizing–or on any application. The Parts Guru is always on call, waiting to help you.

 Don’t forget: Emergency service is available, 24 hours a day, 365 days a year.