Application Total Hardness Test Kit

As long as the water is red, add the liquid drop by drop into the measuring cup. Count each drop and shake the measuring cup after each drop.

 

As soon as the water turns slightly yellow, gently add another drop or 2.

 

As soon as the liquid has turned green, you have determined the hardness of the water using the amount of drops added.

 

Converter water hardness

dH° 5 10 15 20 25 30 35 40 45 50
fH° 9 18 27 36 45 53 62 71 80 89
e° 6 13 19 26 31 38 44 50 56 63