What Are Chlorine Test Strips Used For?

How do you read a chlorine test strip?

Simply dip one test strip into pool or spa water at elbow’s depth and remove immediately.

Shake once to remove excess water.

Hold strip level and visually compare the strip to the color chart included on the bottle.

Select the corresponding test result colors within 15 seconds of wetting..

Is 10 ppm chlorine dangerous?

Anything between 5-10 ppm is still safe to swim, but you are risking damage to equipment and certainly complaints from swimmers. Some experts recommend no swimming unless the chlorine is 8 ppm or less. You need to make sure your water is first balanced before expecting an effective sanitizing program using chlorine.

Why do I have no free chlorine?

One of the causes of a high chlorine demand is an excessive buildup of algae and phosphates. Although you’re adding chlorine to your water, bacteria or algae are overpowering the chemicals causing it not to show up on tests strips or in water kits. … As chlorine does its job, it is depleted in the process.

What happens if free chlorine is low?

When the chlorine level is too low, microorganisms like bacteria are able to multiply faster. With harmful bacteria like e-coli, this will quickly cause your pool to be unhealthy, risking any swimmers potentially getting sick. Algae growth. Algae will also grow quickly.

What does free chlorine mean on a test strip?

Free chlorine refers to the amount of chlorine that has yet to combine with chlorinated water to effectively sanitize contaminants, which means that this chlorine is free to get rid of harmful microorganisms in the water of your swimming pool.

Are chlorine test strips accurate?

Pool Test Strips: The most inexpensive and widely used method of water testing – test strips – is fast, easy, and fairly accurate.

How do you test for chlorine in water?

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.

How can I raise my free chlorine level?

Raise the Level of Pool Chlorine Raising pool chlorine can be much easier than trying to lower chlorine levels. Simply adding chlorine in the form of chlorine tablets, granular chlorine, liquid shock or powder shock will increase the total amount of chlorine within the pool.

What do chlorine test strips measure?

Hydrion Chlorine Test Paper provides a simple, reliable, and economical means to measure the concentration of free available chlorine in sanitizing solutions. With color matches at 10-50-100-200ppm, the test paper measures concentrations between 10-200ppm.

How do you read a sanitizer test strip?

If it reads between 100 ppm and 400 ppm, then the concentration is fine. Iodine-based sanitizers: Dip the strip into the sanitizing solution for 60 seconds, then remove and compare to the color chart. If it reads between 12.5 ppm and 25 ppm, then the concentration is fine.

How often should a pool be shocked?

It’s often recommended to shock your pool once a week. If you don’t do it every week, you should at least do it every other week. This is necessary to maintain your pool’s water chemistry. If you have a lot of people over in your pool or have a party, you may want to shock your pool more frequently.