Water Hardness Yes/No Bottle of 250 Lovibond 503541

Tablets provides a test for determining the quality of water produced by industrial and domestic water softeners. Test Range -Hardness Total 4 mg/l; 8 mg/l; 20 mg/l CaCO3 Uses Yes/No Test Method. Limits of 4, 8 or 20 mg/l (equivalent to 0.04, 0.08 and 0.2 mmol/l) can be measured
The tablets work with a traffic light, green means soft and red means hard, to find out how soft the water is the sample should be diluted until the water turns red or you reach the dilution level which confirms the water is as soft as required.

Use a 10ml vial to measure hardness down to 20ppm.

For water softeners we recommend testing down to 1ppm which can be done with a sample of 200ml of water.