Question

You test the pool water and observe that the calcium hardness is low. What chemical you should use

to raise the calcium hardness?
A) Muriatic acid directly over the main drain
B) Sodium Bicarbonate
C) Calcium Chloride
D) Sodium Thiosulfate

Answer 1

To raise the calcium hardness in the pool water, you should use Calcium Chloride.

Step-by-step explanation:

To raise the calcium hardness in the pool water, you should use Calcium Chloride (Option C).

The calcium hardness in pool water refers to the concentration of calcium ions. A low calcium hardness can lead to corrosion of pool surfaces and equipment. Calcium chloride is a chemical compound that contains calcium ions and can be added to the pool water to increase the calcium hardness.

For example, if the calcium hardness is low, you can add calcium chloride to the pool water. This will increase the concentration of calcium ions, helping to maintain the proper calcium hardness level.