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Low repeatability in the results, or/and many results in red (out of range results).
Knowledge base & downloads
The beaker should always be filled with the same amount of water.
The reagent system (bottle, connectors, line and stepper pump) is one the most important factors for good accuracy
KH results may fluctuate if the area where water In tube collects the aquarium sample is inconsistent
How autoBalance mark KH results as "Out of range"
Problems of over-dosage, or under-dosage
