Why do we shock the pool at night?

The best time of day to shock your pool is in the evening. This is because the sun's rays can affect the effectiveness of the chlorine by dissolving it too quickly, before it has a chance to rid the pool of contaminants and clean the water.
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Do you have to shock at night?

The Best Time To Shock Your Pool

The unstabilized chlorine in pool shock has zero protection against the UV rays of the sun. Once it comes out to play, you can wave bye-bye to all the unstabilized chlorine in the pool. So, when using chlorinated shock, always shock at night.
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When should I put shock in my pool?

The ideal time to shock your pool is in the evening after all swimming is complete. In the evening because the sun will not be boiling the chlorine out of your pool, and after everyone is done swimming because shocking is going to bring the chlorine level up to a level that may be irritating to skin and eyes.
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Why do I have to shock my pool every day?

Shocking Your Swimming Pool During The Day

Since they irritate the eyes and skin and generally make life miserable, chloramines don't belong in your pool. Shocking gets rid of chloramines and helps bring your pool's chlorine levels to a well-balanced 3 parts per million (ppm).
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Can you shock pool too much?

Can you put too much shock in a pool? SKIMMER NOTES: It's unlikely but it could happen. It would take a lot of shock to really make the water unsafe for swimming. The best way to make sure you're safe to swim is to test your pool water and make sure free chlorine levels are between 1-4ppm for healthy swimming.
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How Often Should You SHOCK Your POOL? | Swim University



What happens if you swim in a shocked pool?

What Happens If You Swim In A Shocked Pool? If you do not wait for the chemicals used to shock a pool to totally dissolve then you could be placing yourself in serious danger by swimming in it. At the minimum, you will feel itchy skin and eyes because of the chemicals present in the water.
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Should I shock my pool every week?

How Often Should I Shock My Pool? Shocking your pool regularly will help to keep the water clean and free of contaminants. You should aim to shock your pool about once a week, with the additional shock after heavy use. Some tell-tale signs that your pool needs to be shocked are cloudy, foamy, green, or odourous water.
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Do you run filter when shocking pool?

Run the filtration system

While shocking your pool will help kill any germs any algae, it won't actually get rid of them; for that, you need your filter. So be sure to run your pool filter for at least 24 hours.
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Can you swim after shocking pool?

After Shocking Your Pool

It is safe to swim once your chlorine levels are around 5 ppm or after 24 hours. It is always best to test first!
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Should you shock pool before or after rain?

Give your pool a good shock treatment 1 to 2 days before the storm hits. You can bring the chlorine level up pretty high to prolong the pool being depleted of chlorine.
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Should I brush pool before shocking?

Before you start pouring shock in the pool, the first step is to brush the sides and floor of your pool to loosen all the algae. Doing this breaks the skin and allows the pool shock to more easily kill the algae. Once you've done this, it is important to make sure you have the proper pH level in your water.
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Should I shock the pool after it rains?

Shock the pool

After heavy rainfall, your pool's chlorine levels will be much lower from fighting off contaminants. Shocking your pool replenishes the chlorine lost from the rain.
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How long does pool shock take to work?

Always run the pump when shocking the pool and allow it to circulate for 24 hours. The water should then be a blue or cloudy blue color. Test the water 24 hours after shocking and start adjusting pH and alkalinity levels. The chlorine will still be elevated, but over a few days, it should stabilize.
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Why did my pool get cloudy after I shocked it?

High doses of chlorine, like pool shock, can cause temporary cloudiness as it kills contaminants. High levels of pH, alkalinity, and calcium hardness are more likely to cause cloudy water.
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How long does pool shock last?

Properly stored, pool shock has a shelf life of over 5 years.
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Is it OK to put shock into skimmer?

Never pour pool shock into the skimmer, pre-dissolve for use in vinyl liner pools. When broadcasting shock across the surface, be mindful of the wind direction. Brush the pool after shocking, and filter the water for at least 8 hours afterward.
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Is pool shock the same as chlorine?

Shock is chlorine, in a high dose, meant to shock your pool and raise the chlorine level quickly. Chlorine tabs (placed in a chlorinator, floater, or skimmer basket) maintain a chlorine residual in the water. You do need to use both tabs and shock.
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Can I use bleach to shock my pool?

Calculate the amount of bleach you need based on the fact that 1 gallon will raise the free chlorine level of 30,000 gallons of water by 2 ppm. If you need to mildly shock a 30,000-gallon pool by raising the free chlorine concentration to 5 ppm, you need 2.5 gallons of bleach. To raise it to 10 ppm, you need 5 gallons.
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How long should I run my pool pump after shocking?

It is a question a lot of pool owners have and a question that we have the answer to! A pool filter should be run for a minimum of 6 hours after shocking a swimming pool. This is to allow the filter to clean the water and give the shock enough time to fully mix with the pool water.
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Does Shocking a pool raise pH?

Pool shock.

Shocking your pool is important, but if you're using cal-hypo (calcium hypochlorite), it can raise your pool's pH levels. Don't stop shocking your pool, but do test all your chemistry levels consistently, especially after shocking.
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Should I backwash after shocking pool?

Steps for Preventing Algae

If your pool is used frequently, shock it at least once a week. Clean or backwash your filter regularly. Run your pool pump for at least 10 hours per day to completely circulate the water.
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How long after chlorine can I swim?

Liquid Chlorine: Depending on how much you have added and the size of your pool, it is generally safe to wait about 4 hours after adding liquid chlorine or until levels reach 5 ppm or lower. After Shocking Your Pool: It is safe to swim once your chlorine levels reach 5 ppm or lower, preferably at 3 ppm.
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Why did my pool go green overnight?

The most common reason pool water turns green is due to algae growing in the water. Algae can grow rapidly, particularly in hot weather, which is why it can surprise you overnight during the warmer months. This generally comes down to an imbalance or lack of chlorine in the water.
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What should pH be before shocking pool?

Before you add shock treatment, you need to test your pool water and balance its levels. The pH level should be between 7.2 and 7.6, with total alkalinity being between 80 and 120 ppm.
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Will baking soda clear a green pool?

Will baking soda clear a green pool? No. Baking soda will only raise your alkalinity and pH levels and this will not kill algae. Chlorine is what kills algae.
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