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Anyone who takes good care of their pond will want to know the water quality. A useful tool for this is the Velda water test. This tester can be used with a smartphone or tablet and provides a comprehensive pond diagnosis, so you know exactly what the water is like.
The tester looks at pH, GH and KH
Velda's water tests examine various components of the water to provide a clear picture of its quality. These include the pH test, which assesses acidity, the GH test, which checks water hardness, and the KH test, which focuses on carbonate hardness. All these factors combined provide a diagnosis that is stored. This also allows you to see whether the water improves over time.
