Supporting Farms With the Power of Smart Engineering

The partnership between T‑T and Charlie Bell Building has completely reshaped the way Oatlands Dairy manages slurry, digestate and overall site efficiency - creating a smarter, safer and more environmentally responsible operation. Working alongside the newly installed Bioelectric micro‑AD plant, located just down the road from Stonehenge, T‑T delivered a series of integrated pumping, mixing and control solutions that resolved years of inefficiencies and introduced a new level of automation and reliability.

Before these upgrades, the farm struggled with poorly performing tanks, inconsistent mixing, labour‑intensive processes and limited visibility of system status.

T‑T’s engineering team began by exploring how to supply the AD plant with a constant source of homogenous slurry. After considering all site variables, they integrated a submersible feed pump and mixer controlled directly by the Bioelectric plant. This ensures that only freshly mixed slurry enters the system, optimising biogas production and reducing inefficiencies.

Further improvements were made to one of the site’s most problematic tanks, where six submersible TBM mixers were mounted beneath a slatted floor in a slalom configuration. T‑T also designed and manufactured fixed brackets to ensure the correct mixing angle. This tank had never functioned effectively since its construction, but with T‑T’s mixers in place, the flow is now smooth and consistent, with no settlement or crusting issues.

With slurry now reliably homogenised, two PTS submersible chopper pumps transfer material 70 metres from the top of the farm to the AD reception pit, making fresh slurry more accessible and significantly easier to manage. An eight‑motor control panel with ultrasonic level sensing enables the entire system to operate autonomously, reducing manual labour and ensuring stable, predictable performance.

Oatlands Dairy previously relied on older farming methods involving satellite slurry tanks, which often led to operational challenges. To bring all slurry into one central system, T‑T installed two additional TBM mixers and a PTS transfer pump to move slurry from the back of the collecting yard - an area that would otherwise require physical manual handling.

T‑T also recommended the SM Screw Press; a high‑dry‑matter slurry separator that now produces 35–40% dry solids, dramatically improving digestate handling and reducing storage issues. This system is supported by T‑T Seer®, an advanced cloud‑based monitoring platform that provides real‑time performance data, remote start/stop control and early warning alerts for potential faults or flooding - giving the farm a level of confidence and oversight it has never had before.

The result is a farm that now operates more efficiently, safely and sustainably than ever. Flood and hazard detection systems provide early visibility of risks, while improved mixing and transfer capabilities ensure smooth performance throughout the entire slurry process. The Bioelectric plant benefits from a steady, high‑quality slurry supply, boosting energy production and reducing waste. Labour requirements have fallen thanks to automation, and long‑standing infrastructure issues have finally been resolved.

This project demonstrates how the combined expertise of T‑T and Charlie Bell Building can transform agricultural sites of any scale. With industry‑leading pumps, mixers, control systems and monitoring technology - supported by strong relationships with suppliers and partners - T‑T delivers dependable, environmentally conscious and future‑ready solutions that elevate long‑term farm performance.