Human Powered Sludge Pump

Over 800,000 people manually empty septic tanks in India alone. The HPSP was designed to keep manual tank emptiers out of the tanks and make the emptying process cleaner and safer.

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January 2017

Bern Office Now Open

Beaumont has opened a new office in Bern, Switzerland! If you are ever in the area and would like to stop by for a visit, please drop us a line at


16 - 20 October 2017

Water & Health Conference

We will attend UNC’s Water & Health Conference this fall. To arrange a meeting to hear about our work, and share about your work, please email

Additional details coming this summer.

Who. What. Where. When. Why. How.

Beaumont has been around in one form or another since 1996. We’ve designed tools to manufacture hard-disks, flat-panel displays, and semi-conductors. We’ve developed medical equipment to detect cervical cancer and developed medical test devices. We even worked on wearables before they were hip. Between 2011 and 2016 we managed the Fecal Sludge Omni-Ingestor program on behalf of the Bill & Melinda Gates Foundation. And until 2017, we were developing fecal sludge management products for the program. We are passionate about developing technology that improves the quality of life for the less privileged in the developing world. To that end, we are developing water treatment systems and sanitation technology with the goal of improving the lives of 100 million people by 2029.



Every day, millions of gallons of human waste are manually removed from septic tanks and latrine pits, often with open containers. The emptiers, the residents of the home, and the people in the community are exposed to hazardous conditions and material that can make them ill, sometimes mortally, and have dire effects on all aspects of their lives.

The HPSP was designed to keep manual emptiers out of tanks and make the emptying process cleaner and safer. It was also designed to earn emptiers money: pumping up to 30X faster than other manual methods.

The development of the HPSP began as an internal project that subsequently received funding from the Bill & Melinda Gates Foundation. The design of the pump is currently being refined to make it more reliable and easier to maintain. Field trials are expected to begin in the fall of 2018.

Get a handle on FSM

Fecal Sludge Management must be environmentally and economically sustainable to succeed. The HPSP helps with both.

  • The HPSP significantly reduces the amount of waste that is spilled during emptying.
  • The HPSP saves so much time during emptying that there is ample time in the day to transport the waste to a legal dump site
  • The HPSP pumps so fast that more pits can be emptied per day and emptying fees can be reduced, expanding market penetration
  • More pits means more income

Easy to use. Easy to maintain.

Select a component to see a description.


Sludge is drawn in through a 2” hose from a depth of 2 meters.

Strainer Cap

Release 2 levers for quick access to the strainer.


The strainer prevents large pieces of debris from going into the pumping chamber, protecting the valves and piston. The strainer can be quickly and easily removed and the debris dumped out.


Two custom valves resist clogging and permit fast opening and closing.


Every time the piston goes up and down 2 to 3 liters of sludge gets pumped. Two seals and two guides ensure that this part provide reliable pumping for several hundred thousand cycles.


Waste can be pushed 10 meters to a tank for transportation to a disposal site.


Dimensions when collapsed

0.5 meters wide

1.2 meters long

0.2 meters high

Dimensions when assembled

0.5 meters wide

1.2 meters long

1.1 meters high

Dry Weight

35 kilograms

Pump Capacity

Intake Height: 4 meters

Discharge Height: 3 meters

Discharge Distance: 30 meters


100 liters/minute


Complete Kit

Light assembly required

Price: TBD

Partial Kit

Metal Cutting Required

Plastic cutting required

Drilling required

Painting required

Moderate assembly required

Price: TBD

Blueprints and Instructions

All parts must be sourced

Machining required

Welding required

Painting required

All assembly required

Price: TBD

Light. Compact. Mobile.

Access to the pits in urban settlements requires a device that can be taken down narrow paths. Contact us if you want to take one out for a spin.


Contact Information



2800 Woodlawn Drive, Suite 243
Honolulu, Hawaii 96822


Kramgasse 58
3011 Bern

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