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Muffin Monster Repair for HM Prison

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The Challenge

We were asked by one of our clients to swap their existing Muffin Monster (an inline macerator used on their sewage system) for a spare one they had on site. The area was a confined space and also inside the prison. The client also wanted the existing Muffin Monster repaired and returned to site as a spare.

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The Solution


The above challenge was not an issue for Dura Pump as we regularly work with Muffin Monsters, Mono Munchers and other inline macerators, which protect prison waste pumps from blockages. Our engineering team is confined space trained so the removal and replacement of the macerator was straightforward.

Once the spare macerator had been installed, we returned the existing Muffin Monster to our workshop for a full dismantle and inspection. Once a full workshop report had been created we then quoted our client for the work required using genuine Sulzer parts. Having received the go-ahead from our client we carried out a full clean on the macerator, prepared all the parts, supplied and installed new cutters, bearings, gaskets and a coupling, and had the ATEX motor rebuilt with new bearings. We re-assembled the completed unit, tested it and delivered it back to site as their spare.

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The Outcome

As a result, our client was able to use us as a single point of contact, from the installation through to the repair of the spare macerator, minimising hassle for them and ensuring continuity throughout the job.

Delivering Certainty for Critical Buildings

Whatever the challenge, talk to our team about keeping your critical pump systems reliable, efficient and ready when you need them.

We’ve had great reviews

Clear, Consistent Communication

The communication from Dura Pump to the customer is very good. We knew what was happening with the repair every step of the way

Purchasing Manager

Outstanding Turnaround

We just wanted to feedback our grateful thanks to Chris and Phil for all their hard work yesterday in getting us up and running again. To turn us around from failure to full recovery in 4/5 hrs was nothing short of exceptional. Please pass on our gratitude to them both.

Operations Manager

Seamless End-to-End Service

Service and communication received from initial inspection and specification through to delivery and installation of our replacement system was seamless. Thank you.

Facilities Supervisor

Informative & Helpful Engineers

Your engineers are always informative and always let me know when they are on site. Always very helpful, always kept well informed, which makes such a difference!

Building Manager

Fast, Friendly & Efficient

Fast, efficient, friendly staff in sales, accounts and installation. Very happy.

Project Coordinator

Top-Quality Workmanship

Over the moon with the service and quality of work/engineers.

Maintenance Manager