The Elvion Water Hardness Test Kit is essential for accurately measuring the hardness of your water, ensuring optimal quality for drinking and household use. Carefully read the instructions inside the Test Kit to get started: first, rinse the test tube with the water to be tested and empty it completely. Fill the test tube to the 5ml mark with the water sample, then add 1 drop of bottle A; replace the lid and mix to observe the water change to a pink/purple colour. Next, gradually add drops from bottle B, counting each one and mixing after each addition until the colour transitions back to blue, indicating the hardness level. This easy-to-use kit provides reliable results, promoting better water management in your home.