Set the comparison up before mixing
Use representative water and record the starting conditions, including pH, temperature and the quality measurements relevant to your treatment goal. Identify the current treatment and the proposed grade.
Record enough detail to reproduce the trial
Keep the mixing and observation schedule consistent across comparisons. Record the product dose basis, chemical addition sequence, appearance of the floc and the final water quality measurement. Include a baseline that helps interpret any change.
Use the results to plan the next trial
Discuss the result with the treatment team before changing plant operating conditions. Share the test record when requesting a grade recommendation or a sample for the next evaluation.
For the general method, see the Veolia Water Handbook on clarification and jar testing.