The Water Hardness Detection Test is an application for checking the quality of your water with simplicity and accuracy. It is a quick, user-friendly, and effective way to measure the hardness of your water.

How It Works:

• Fill the test tube with the water you want to check, up to the 5 ml mark.
• Start adding drops of the liquid into the water, one by one.
• The water in the test tube will change color from transparent to red.
• Continue adding drops until the water turns green.
• Stop and count how many drops were needed for the water to change color from red to green.

The number of drops you added corresponds to the French degrees of hardness of your water.