Ensuring Accuracy and Consistency in Hydraulic Network Modelling

Background

Hydraulic network models are critical for effective water management, helping water companies optimise operations, reduce leakage, and improve service reliability. To ensure consistency and accuracy, most water companies implement Model Build Specifications—detailed technical documents that outline the requirements, design, and implementation of these models.

The Challenge

Scottish Water recognised the need for independent auditing of their hydraulic models to maintain high standards across their model build and maintenance projects. They required a partner with deep industry expertise to identify potential issues, ensure compliance with specifications, and drive continuous improvement in model accuracy.

Our Approach

HydroCo was commissioned by Scottish Water to provide independent auditing services, leveraging our extensive experience in hydraulic modelling. Scottish Water has developed a robust auditing process that provides the project team with valuable feedback and tracks the resolution of any key issues. Each audit comprises the following key elements:

Comprehensive Base Model Compliance Checks – Identifying non-conformities, from missing Asset IDs, data flags and pipe asset data, to verifying whether the model can simulate dynamic operation through its control systems.

Validation of Engineering Decision Making – A thorough review of each documented calibration action to assess whether the most appropriate solution has been applied, while also identifying patterns and trends across each hydraulic system.

Innovative Assessment Techniques – Evaluating every stage of the model build process using a series of Stored Query Language (SQLs) routines which identify non-conformities using a repeatable quantifiable process.

Best Practice Implementation – Drawing from our work with multiple water companies within and outside the UK to align with industry-leading standards.

We challenge modellers to critically assess their calibration actions, ensuring that solutions are not just functional but the best available. By fostering a collaborative environment, we empower teams to develop more robust, efficient, and future-proof models that drive operational success.

With growing network complexity and advancements in technology, the need for optimisation and advanced control strategies has never been greater. External expertise plays a crucial role in bridging the gap between traditional modelling practices and cutting-edge solutions.

HydroCo remains committed to supporting water companies in delivering accurate, consistent, and innovative hydraulic models.

If you would like to learn more about how HydroCo can support you with auditing, please contact us at innovation@hydroco.co.uk or call 023 92 450 007.