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Testing

Jar testing

Bench testing that compares coagulant, pH and settling behaviour on a representative sample, giving the team evidence to plan the next step.
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A representative site-water sample in a jar-testing flask

Who this is for

Civil environmental managers, consulting engineers and treatment operators

Your operating priority

Choose a defensible chemistry and starting dose for the water actually on site.

Before you specify or buy

Provide representative samples and target conditions; compare dose response, pH and settling, then allow for field verification and changing inflows.

What is covered

  • Bench-scale comparison of selected coagulants and pH conditions.
  • Observe floc formation and settling response under defined test conditions.
  • Record test conditions and observations to inform further trials or process review.
  • Testing informs a treatment decision; it does not guarantee universal compliance or full-scale performance.

What we will ask you

  • Representative sample, source and collection time
  • Current treatment and the question the test should answer
  • Target conditions and approval requirements

This page is information only. Pricing, availability and specifications are provided through an enquiry.

Recent HES Basin jar testing · Company-reported result

From over 2,000 NTU to under 26 NTU.

Critical Elixirs reports this turbidity reduction in a recent HES Basin jar test. NTU is a measure of turbidity—the cloudiness caused by suspended material. The supplied photographs show the tested water samples and a treated-sample meter reading.

HES Basin jar-test beakers with a cloudy brown sample and clearer samples with settled solids
Supplied jar-test photograph: visibly different water clarity and settled material. Appearance alone is not a numerical test result.
ProDSS meter photographed during HES Basin jar testing, displaying a turbidity reading below 26 NTU
Supplied meter photograph supporting the final reading below 26 NTU. The starting reading above 2,000 NTU is company-reported and is not pictured.

This is a sample-specific bench result, not a guaranteed field outcome or discharge approval. Chemistry, dose, mixing, settling time and instrument calibration records are not established by these photographs. Site approvals, representative testing and field monitoring determine the operating and release requirements.

How jar testing informs HES Basin treatment

Straight answers

Frequently asked questions

Can jar testing determine the right dose for an HES basin?
Jar testing compares chemical dose, pH response and settling on a representative sample and provides a starting point for site trials. Translate results to actual mixing, inflow and equipment delivery, then verify performance as conditions change. A bench result is not a universal operating dose or a discharge guarantee.
Does a jar test guarantee full-scale results?
No. Bench conditions differ from site mixing, flow and water variability. Testing informs selection and may indicate what to trial at scale.
How much sample is needed?
The required volume depends on the test plan and sample variability. The team can confirm sample collection and handling before testing.

Field equipment and testing

Real sampling, measurement and dosing equipment. Individual photos are not a controlled performance comparison; interpretation requires the sampling context, method and calibration records.

  • Jar test sample of site water
    Jar test sample. Jar testing compares options on your own water.
  • Water sample with settled material at the bottom of a flask
    Water sample with visible settling in the flask.

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