Water Hardness Yes/No Testing Kit

This simple Yes/No water hardness test is ideal for quickly determining the hardness (CaCO₃) of water produced by industrial and domestic water softeners. Designed for easy on-site use, it provides instant colour-change results so you can assess softener performance without requiring laboratory analysis.

How to Use:

1. Collect a 20 ml or 50 ml water sample in the container provided.

2. Add the correct number of Hardness YES/NO tablets to the sample (the required number depends on the hardness level you’re checking).

3. Shake the container until the tablets fully dissolve and the colour remains stable.

4. Interpret the results:

• Red = Total hardness is higher than expected
• Green = Total hardness is lower than expected

Cleaning:
Rinse and dry the sample container after each test.

Pack Size:
250 tablets.

Storage & Safety:
Store in a cool, dry place below 32 °C. Keep away from heat, acids, children, and pets. Avoid contact with eyes or skin and do not ingest. SDS included.

Have questions about water hardness testing? Speak with our team on 01454 417920 or reach out through our Contact Page.