Lotus Clean Total Hardness Test Kit

Application Total Hardness Test Kit

The Total Hardness Test Kit determines the water hardness in degrees of German hardness. Each drop added corresponds to one degree of German hardness.

Step 1

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

Step 2

As soon as the water turns slightly yellowish, carefully add another drop or two.

Step 3

Once the liquid has turned green, you have determined the water hardness based on the number of drops added.

Water hardness converter

fH°: French hardness degree
e°: Clark degree (English hardness)

rounded figures

Exact conversion from dH° to fH°
fH° = dH° * 1.78

Exact conversion from dH° to e°
e° = dH° * 1.25