How Long After Shocking Pool Can You Swim

Have you recently shocked your pool due to chlorine and now thinking about how long after shocking pool can you swim? Well, you are at the right place. Pool shocking includes chemicals and taking proper precautions before swimming is important.

Adding chemicals to the pool to remove all dust, germs, and fungus is called a shocking pool. After adding chemicals, the ph level is disturbed, and many other reactions start in the pool water.

You should always check the ph level of the pool water before swim because it may irritate and harm your skin. We will describe the complete procedure of shocking and the timing at which the reaction will be finished and explain which pool water conditions are safe for swimming.

How Long After Shocking Pool Can You Swim?

Shocking your pool, clear pool water, and make it germs-free. Bacteria, fungus, algae, urine, people’s sweat, cosmetics, and many other things are present in pool water after swimming.

These things made water dirt and smelly. For this purpose, some chemicals are added to pool water. These chemicals removed all these waste materials in water and produced clear and germ-free water.

After adding chemicals, question aris ios, how long after shocking pool can you swim? The answer to this question depends upon the type of chemical you use for cleaning purposes.


It is present in liquid form. It would help if you waited till the chlorine level reaches 5ppm or less. It generally takes 24 hours.


Most flocks are settled at the bottom of the pool after the reaction where they are vacuumed to waste. Therefore, wait for it to complete its procedure because it may slightly harm your skin more than other chemicals.


Algaecides are safe to swim. They kill algae produced in pool water. Mostly we wait 15- 20 minutes after its use for swimming.

Muriatic Acid

As mentioned in the name word acid, it increases the acidity of water. Aaacidic water may irritate or burn your skin. That is why you should wait 30 minutes after its addition for swimming.

Calcium Chloride

When using calcium chloride in pool water, you should wait to complete one cycle through a filter. It approximately takes 2-4 hours or depending upon the pool size.

These are present in granular or tablet form. You must dissolve it first to add water. It acts as a bleaching agent to sanitize pool water.


It takes 15 min to 1 hour in the pool water to balance the chemicals in pool water.

Effects of Swimming in a Shocked Pool

Effects of Swimming in a Shocked Pool

If you swim in the pool water before checking its chemicals and ph level, they may harm you. It may cause allergy to your skin, irritation of the eyes, redness of the skin, and many other problems.

These problems are just because pool water becomes acidic after adding chemicals to water, and acidic water can hurt your skin. All these issues are reversible and cured with time.


The addition of chemicals is not a game. It would help if you took care during expansion and before swimming in a shocking pool.

1: Before adding chemicals into the pool, check your pool water requirement, then add chemicals to it.

2: Give proper chemical time to react so that water becomes clear and germs-free.

3: Germs and contaminants in pool water may foul pool water and make it dirty; therefore, shocking a pool is necessary.

4: Check the pH of the water before swimming in a pool.

5: Shock your pool within a week or as-needed.

6: Free chlorine should be 1-10ppm, bromine should be 3-8 ppm, while the whole ph of water should be 7.2 – 7.8.

Now you know how long after shocking pool can you swim.

How To Shock Swimming Pool?

A shocking swimming pool is elementary. But this should do it with great care. Shock a pool consists of the following steps:

1- Change Your Clothes

First of all, change your clothes with safety clothes or old ones so that if any chemical falls upon your clothes, it can not harm your new and used garments.

2- Cover Your Hand and Face

Try to cover your hands with gloves and wear a mask before touching chemicals so that they can not burn your skin.

3- Choice of Chemicals

Check your pool water condition, then select chemicals that either want to remove fungus, contaminants, or other things from pool water.

4- Preparation of Chemicals

If a chemical is present in simple liquid form, you should not need to dissolve it in the water. You should add it directly into the pool.

But if chemicals are present, tin granules or tablets form, then dissolve them in water first, then add in pool water.

5- Give It Time

After adding chemicals into the pool, give proper time for reaction. So that all germs and material present in pool water destroy and pool water becomes clear and gems accessible.

Can You Over Shock Your Swimming Pool?

Over shocking a pool means adding chemicals in a large amount rather than a necessary or average amount. Some people think that if they add more shocking substances, the pool water will become clearer.

Can You Over Shock Your Swimming Pool 

That’s wrong; there is a limit to adding chemicals to the water. Generally, chlorine is added 1 lb per 10000 gallons. But it is good if you will follow the precautions and uses of the chemical mentioned in the packing.

The lithium ratio used is 10 ounces per 10000 gallons of water. Calcium hypochlorite and sodium dichlor are used one pound per 10000 gallons of pool water.

If you add more chemicals than usual, it may also harm your pool surface and pool water. Due to excess chlorine, green hair by the chlorine due to excess oxidizing copper in water is produced.

Over shocking the pool can kill all algae, imbalance water chemicals, and become unhealthy.

Swimming Pool Shock Treatment Calculator

Shocking pool water is essential; it makes the water clear. Some questions that arise during this procedure are: How much chemical should be used? How long after the shocking pool can you swim? Which type of chemical should be used?

For this purpose, a calculation is necessary. For calculation purposes, online calculators are available. If you add information about your pool, i.e., width, length, volume, free chlorides, etc., they will calculate automatically.

Liquid Shock for Swimming Pools

Sodium hypochlorite is called liquid shock for pool water. It is also known as BLEACH. Now the question is, How to Shock a Pool with Bleach or liquid shock?

It is present in liquid form. Therefore, its name is a liquid shock. There is no need to dissolve this shock chemical in water. It is a heavy-duty chemical, so it is not used in homes commonly.

It is straightforward to use this type of shock. You should generally swim after 24 hours after adding in pool water.

Cloudy Swimming Pool After Shocking

Sometimes pool water seems cloudy due for the following reasons:

Imbalance chlorine, ph, calcium hardness, clogged filter system, ammonia, and algae. Wait until pool water becomes clear for swimming. When the chlorine level reaches 1-4 parts per million, you can swim.

If pool water is cloudy after shocking, then wait until it becomes clear or check chemicals and ph levels and balance them by adding required chemicals. After balancing, chemicals in pool water will become clear.

The filter system also plays a crucial role in cloudy pool water. You should check your filter system and keep it. It will also help a lot to clear water.

FAQs: How Long After Shocking Pool can you swim?

Most swimming pools are shocked every week, after winter and after a heavy storm. Shock treatment mostly depends upon the use of pool water. If it is commercial, you should need to shock two times a week, or it relies on the pool water condition.

The chlorine level will be high at once after shocking the pool. If you use the pool for swimming, it may irritate your eyes and skin. Shocking your pool is necessary, but you should do it with precautions.


Pool Maintenance is necessary for swimming in summer in pool water. Many germs and bacteria are produced in water. Therefore, proper treatment is needed. How Long After Shocking Pool can you swim?

Mostly wait for 24 hours after adding the chemical. Before swimming in the pool, check the pH of the pool water, then enter in pool water. Otherwise, it may hurt your skin. All problems produced are reversible and recover with time. Follow our blog for more quality content related to pools.