BestPoolTestKit.com is supported by readers and may earn an affiliate commission.

Test for calcium hardness

Check Your Water's Calcium Hardness with This Simple Test

Testing for calcium hardness is an essential part of maintaining the quality of your water. Calcium hardness measures the amount of dissolved calcium in the water, which can affect the water's ability to dissolve other substances. High calcium hardness can lead to scaling, while low calcium hardness can cause corrosion. Therefore, it is crucial to test for calcium hardness regularly. Here is a step-by-step guide on how to test for calcium hardness:

Step 1: Collect a Sample of Water
Collect a sample of water in a clean container. Make sure the container is free of any contaminants that could affect the test results. For accurate results, the water sample should be taken from the pool or spa water at elbow depth.

Step 2: Prepare the Test Kit
Read the instructions on the test kit carefully before proceeding. Some test kits require the addition of reagents or solutions before testing. Follow the instructions carefully to ensure accurate results.

Step 3: Add the Test Solution
Add the test solution to the water sample according to the instructions on the test kit. The test kit may require you to add a specific number of drops of the solution to the water sample.

Step 4: Mix the Solution
Mix the solution and the water sample thoroughly. Depending on the test kit, you may need to shake the container or swirl it around for a few seconds.

Step 5: Wait for the Reaction
Wait for the reaction to occur. The test kit instructions will specify how long you need to wait before reading the results. It is essential to follow the instructions carefully to ensure accurate results.

Step 6: Read the Results
Read the results of the test according to the instructions on the test kit. The results will be displayed as a number, which represents the calcium hardness level in parts per million (ppm).

Step 7: Interpret the Results
Interpret the results of the test. If the calcium hardness level is too high, you may need to add a calcium reducer to the water. If the calcium hardness level is too low, you may need to add a calcium increaser to the water.

In conclusion, testing for calcium hardness is an essential part of maintaining the quality of your water. By following these steps, you can ensure accurate results and take the necessary steps to maintain the appropriate calcium hardness level in your pool or spa water.

JNW 7in1 Pool Test Strips


Check Price
Chlorine and pH Test Kit for S...


Check Price
PoolMaster 150-Strip Water Tes...


Check Price
Pool Test Kit Pro


Check Price