What Is A Safe Free Chlorine Level?

Is too much free chlorine bad?

Exposure to high levels of chlorine can cause lung irritation, skin and eye damage, and provoke asthma.

Not only is it bad for your health, but it can be bad for your pool due to the increase in chlorine.

High chlorine levels decrease the pH of your pool’s water, making it more acidic..

How do I bring my chlorine level down?

Tips to Lower the Chlorine Level in Your PoolUse the Sunshine. A quick and easy way to dissipate chlorine in your pool is to take advantage of a warm, sunny day. … Heat the Pool Water. … Dilute the Pool. … Use Hydrogen Peroxide. … Use a Chlorine Neutralizing Product. … Try Sodium Thiosulfate.

Why is my total chlorine high but free chlorine low?

To make sure your pool is sanitized, your free chlorine should remain higher than your combined chlorine. … 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.

What level of chlorine is dangerous?

Safe chlorine levels range between 1 and 3 parts per million. At concentrations above 6 ppm, the pool is unsafe.

Is 10 ppm free chlorine dangerous?

Pools will naturally gas-off chlorine from the surface, and very high levels can irritate airways and lungs when inhaled for prolonged periods, especially indoor pools. At chlorine levels over 10 ppm, swimsuits can begin to fade, and pool covers become damaged, and it may be unhealthy for swimmers.

Is 20 ppm chlorine dangerous?

Commercial pools should run their chlorine levels at 3 -5 ppm as their bather load is usually much higher. 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.

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.

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.

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.