Technical guide library
Field notes for the HES basin crew.
Six working guides for civil contractors and design engineers: what to settle, test, calibrate and review. Each leads with the direct answer and ends with its sources.
Project approvals, design documents, regulator requirements, SDS and manufacturer instructions, and engineering advice govern the site-specific approach. This guide is general information for planning and discussion. It does not set doses, discharge limits or compliance outcomes for any site.
- 019 min read
HES basin dosing: setting up and optimising the system
How a dosing system fits a basin, what to settle before commissioning, and how to tune it once water is moving.
Site engineers, civil contractors, design engineers
- 028 min read
Jar testing: what it answers and how it informs chemical and dose
What a jar test can tell you about site water, what it cannot, and how to carry the result into the field.
Design engineers, environmental officers, procurement
- 037 min read
pH and coagulation: why it matters and how to adjust safely
Why pH shifts coagulant performance, how to decide whether adjustment is warranted, and how to keep it controlled.
Design engineers, site operators, environmental officers
- 049 min read
Commissioning, calibration and monitoring for HES basin dosing
What proving a dosing station looks like, what to record, and what should trigger recalibration.
Site operators, environmental officers, project engineers
- 058 min read
Site optimisation: reviewing the system as conditions change
A practical review checklist for when site conditions shift and basin performance moves with them.
Project engineers, site managers, design engineers
- 065 min read
Pre-mobilisation HES Basin checklist for civil teams
Gather the site, programme and operating details needed to scope testing, equipment and engineering review before mobilisation.
Civil contractors, project engineers, site managers
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