Quick Answer: Does Shock Increase Free Chlorine?

Is liquid chlorine better than powder shock?

Liquid chlorine and granular shock have the same active chemical that sanitizes your pool, what changes is the strength and the way you use it.

Liquid chlorine is less costly, unstabilized and comes in liquid form.

Granular shock is stabilized and comes in a solid form that dissolves in your 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 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.

What does free chlorine mean?

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.

How long before you can swim after shocking pool?

24 hoursAfter Shocking Your Pool It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours.

Can you shock a pool two days in a row?

Will the children swim again? Here’s the deal. It’s pretty tough to over-shock your pool; shocking your pool two days in a row with the proper dosage for your pool volume shouldn’t be a problem – and in fact, is sometimes even needed to rid your pool of algae and other contaminants.

Why is my total chlorine low?

Sometimes, it’s just a simple case of pool owners adding too much stabilizer to the water. Sometimes this occurs when you aren’t partially draining and refilling your pool periodically. Adversely, very little or zero stabilizer also creates a demand for 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.

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 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.

How long after adding algaecide can you shock?

Keep your pump and filter running. Give the shock a good 12 to 24 hours to work it’s magic. If the algae hasn’t cleared up after 24-48 hours, clean and brush the pool and add another shock treatment.

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.

How do I raise the free chlorine in my pool?

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 is the difference between total chlorine and free chlorine?

Total chlorine is the total amount of chlorine in the water. When chlorine binds up with contaminants it forms a compound called “chloramines” that are still part of the total but no longer effective. The chlorine that is still active to remove contaminants is known as free.

How much shock Do I need to raise free chlorine?

As a rule, you will need to raise free chlorine to 10 times your combined chlorine to hit what is known as “break point.” Therefore, it is good to deal with combined chlorine while it is still small.

Can total chlorine be less than free chlorine?

If the Total Chlorine in your pool is higher than the Free Chlorine reading, then the difference between the two represents the level of Combined Chlorine in the water. If the readings are the same, then no Combined Chlorine is present. The Total Chlorine level cannot be less than the Free Chlorine level.

Are chlorine tablets free chlorine?

Free chlorine is the chlorine that is available to combine with contaminants in the water to disinfect and sanitize the water. … Free chlorine to treat a pool can come in liquid form, tablet form or granular form. The only difference between these types is the material that is bonded with the chlorine.

Does shocking pool raise pH?

Chlorine based pool shock (Calcium Hypochlorite) has a high pH, and will naturally raise the pH level of your swimming pool water, in addition to changing your chlorine level. Chlorine free shock has a neutral pH, and will not affect any of your pool chemical levels.