What Is The Difference Between Total Chlorine And Free Chlorine?

How much shock Do I need to raise free chlorine?

The goal of shocking your pool is to raise the free chlorine level of your pool water to roughly 10 times the combined chlorine level of your pool water..

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.

Why does my pool have no free chlorine?

If you test your pool water and can’t get a chlorine reading, it may be due to your pool’s high demand for chlorine. A high chlorine demand (sometimes referred as chlorine lock), simply means that although your water may appear clear and balanced, the chlorine in your pool is ineffective.

Will Shock raise free chlorine?

“Shocking” refers to the process of adding chlorine or non-chlorine chemicals to your pool in order to raise the “free chlorine” level. The goal is to raise it to a point where contaminants such as algae, chloramines and bacteria are destroyed. … The odor actually comes from chloramines, also known as combined chlorine.

Can total chlorine be less than free chlorine?

Impossible. Combined Chlorine can be no less than zero.

Is it safe to swim in a pool with low free chlorine?

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.

How often should I add chlorine to my pool?

During the swimming season, you should check the chlorine level at least twice per week. The ideal chlorine level should be between 1 and 3 ppm. If the level is below 1 ppm, you should add more chlorine.

Can I add shock and chlorine at the same time?

Yes, you can add both shock and chlorine to a pool. However, you should not add them at the same time. The best thing to do is to shock your pool first. Then, once the chlorine levels go down to a certain threshold, you can add more chlorine.

Why is my total chlorine high but free chlorine low?

This occurs when too much stabilizer is added to the water or when the swimming pool isn’t being partially drained and refilled periodically. Chlorine lock can also occur if the pH is unbalanced. The quickest way to determine if a chlorine lock is present is to perform a test for total chlorine and free chlorine.

How do I raise the free chlorine in my pool?

Raise the Level of Pool Chlorine 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 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 if there is no free chlorine in pool?

How to fix chlorine lockPartially drain the pool. Partially draining your pool is probably the best choice since you should be doing it occasionally anyway. … Non-chlorine shock. Non-chlorine shock oxidizes the water, restoring the balance and making it cleaner. … Chlorine shock.