How do you calculate combined chlorine?
The combined chlorine (CC) level is calculated by subtracting the free chlorine (FC) from the total chlorine (TC) in the pool/spa water.
How do you use a pH and chlorine test kit?
How to Use Liquid Testing Kits
- Add the correct number of drops of OTO to the chlorine side.
- Add the correct number of drops of phenol red to the pH side.
- Place your white paper behind the test kit, so you can clearly see the color results.
- Compare colors to any chart given with your test kit to determine levels.
What should my pool chlorine level be?
between 1.0 and 3.0 parts per million
Regardless of how frequently or what system you use to add chlorine to the water, the chlorine level should stay between 1.0 and 3.0 parts per million (ppm) to maintain a healthy pool. Anything higher will make you to run the risk of red eyes and swimmers itch.
How do I test the total chlorine in my pool?
The first option for testing uses a liquid chemical OTO (orthotolidine) that causes a color change to yellow in the presence of total chlorine. You simply fill a tube with water, add 1-5 drops of the solution, and look for the color change.
Is combined chlorine and total chlorine the same?
Free chlorine involves the amount of chlorine that’s able to sanitize contaminants, while combined chlorine refers to chlorine that has combined directly with the contaminants. Total chlorine is basically the sum of free chlorine and combined chlorine.
How can I test my chlorine level without a kit?
All you need to do is simply dip a pH strip tester in your pool’s water and compare the color it turns to a chart. Most pH testing strips come with a chart that you can use to determine the pH of your pool.
How long after adding chlorine can you test?
It takes about 24 hours for the chemicals to properly circulate in order to get an effective reading from the retest. The water test will assess the pH, chlorine, total alkalinity and calcium hardness. If you use chlorine in the pool, you should also test for cyanuric acid.
