Treatment FAQ

how much shock treatment for an 18ft round pool

by Prof. Harry Will V Published 2 years ago Updated 2 years ago
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To shock your pool, use 2 pounds of shock for every 10,000 gallons of water, which should raise your chlorine to 10.0 ppm. Depending on your pool, you can use Leslies Power Powder Plus or Leslies Chlor Brite. After shocking the pool, run the circulation system for at least 2 hours before adding an algaecide.25 2017.

Full Answer

How do I choose the right shock treatment for my Pool?

The type of shock treatment that you choose will depend on a few factors, including your budget, water chemistry and how quickly you want to swim after you shock your pool.

How much shock do I put on my Pool to remove algae?

For dark green or yellow algae blooms, adding enough pool shock to reach 30 ppm may be necessary. A less calculated approach is to balance the chemistry, clean the pool and shock until the water turns a blue-gray color. When shocking the pool to remove algae, it’s best to not hold back, but rather hit it hard.

How much chlorine do I need to shock my Pool?

Here’s a pool shock treatment chart to determine the amount of pool shock necessary to raise the chlorine level above the breakpoint threshold, which is usually around 30 ppm. Not using enough chlorine to not quite reach breakpoint may not have the desired full effect.

Is there such a thing as too much shock in the pool?

Whether your pool is cloudy or full of contaminants, there comes a time when every pool owner needs to shock their pool. However, is there such a thing as too much shock in the pool? Can you “over shock” your pool? In short, pool shock is simply a concentrated form of chlorine.

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How much shock do you put in an 18 foot pool?

Typically for granular shock, you'll need one pound for every 10,000 to 13,500 gallons of pool water. With over 8 million residential swimming pools across the US ranging from 5 thousand gallons to over 30 thousand gallons, the amount of shock you need to treat a swimming pool isn't a one-size-fits-all answer.

How many bags of shock do I need for my pool?

A good rule to remember is to use one bag of shock (1 gallon of liquid chlorine) per 10,000 gallons.

How much shock do I put in my above ground pool?

1:222:16How To SHOCK a Swimming POOL | Swim University - YouTubeYouTubeStart of suggested clipEnd of suggested clipAnd then pour it around your pool you want to do this with one bag of shock per 10 000 gallons ofMoreAnd then pour it around your pool you want to do this with one bag of shock per 10 000 gallons of water or one pound per 10 000 gallons of water.

How many cups of shock do I need for my pool?

How much shock do I need to shock my pool? A simple ratio and a standard rule of thumb to follow when you shock your pool is to dissolve one pound of either calcium hypochlorite or sodium dichlor for every 10,000 gallons of pool water.

Can u put too much shock in a pool?

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.

How soon can I swim after shocking pool?

24 hoursAfter you shock the pool — As soon as your chlorine levels reach 5 ppm or lower, it's officially safe to swim. Depending on the type of shock used, as well as the amount used, it can take anywhere from 24 hours or even up to a couple of days.

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.

How do I shock my pool for the first time?

How do I shock my pool?Check that the pH levels in your pool are balanced.Prepare shock ahead of time in a 5-gallon bucket of pool water and stir.Ensure the pool pump is running. Pour the mixture from the bucket into the water around the edges of the pool.Let the pump run for about 6 hours or more and test the water.

What time of day should I shock my pool?

eveningThe 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.

What do you do after you shock your pool?

Answer: After shocking the pool, it will need filtration and circulation. Run the pump as much as possible. Keep the filter clean (daily) until the water runs clear. Be sure to brush the pool often during this process as above-ground pools do not have drains at the bottom.

Can you use Clorox to shock a pool?

Now you can know the gallons of bleach you would need to shock your pool as follows: use 0.5 gallons of Clorox per 10K gallons of water to increase the level of chlorine by 5 ppm. If you want to raise the level of chlorine by 2.5 ppm, then you would need ¼ gallon of the product per 10K gallons of water.

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.

How much shock Do I put in a 1000 gallon pool?

Answer: The best thing to do is to take the reading for free chlorine first; then you can use pool calculator to find the amount of chlorine to add. Your free chlorine should always read 3 ppm. A 1000 gallon pool may just need 0.13 ounces or a little higher.

How much shock do I need for a 7500 gallon pool?

It takes 1 ounce of chlorine in 7,500 gallons of water to equal 1 ppm. We will divide 30,000 gallons by 7,500 to get 4. It requires 4 ounces of chlorine to raise the parts per million of this example pool by 1. The pool already has a level of 2, so we will need to raise the level by 18 to reach our goal of 20.

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.

How many times should I shock my pool when opening?

about once a weekShocking 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.

How to figure out how much shock to put in pool?

You can get this in 3 different ways: 1) Call the pool company that built your pool. They should have your dimensions and volume on hand. 2) Use a pool volume calculator online.

When to add shock to pool?

Once your pool water is balanced and good to go, it’s time to add shock. Ideally, you want to wait until sundown to add shock to your swimming pool because the UV rays burn off the very chlorine you’re putting into your pool. You should leave the pool uncovered overnight to allow the shock to work, and to avoid damaging the pool cover.

How to add granules to pool?

1) Put on your safety goggles and rubber gloves. 2) Check the package for application instructions. Some Pods and granules tell us to save a step and add them directly to the pool. Remember, this is not a job for the internet. The only instructions you should follow are those you find on the package.

What happens if you swim in a pool with high chlorine?

Swimming in a pool with an extremely high chlorine level may cause skin, hair and eye irritation. But that’s why you should testing your pool water regularly to make sure chlorine levels are between 1 and 4 parts per million. We hope this was helpful!

How to check pool water balance?

To make sure your pool water is balanced, test your pool water with test strips or a test kit. If you’re using a test strip, dip it in the water about 18 inches down for two seconds, pull it out and don’t shake off the water.

Can you add too much shock to a pool?

Can I add too much shock to a swimming pool? It’s tough to add too much shock to your swimming pool. When you’re measuring the amount of shock to put in your pool, it’s okay to round up. In fact – it’s recommended. You’d have to put an excessive amount of shock in your pool to truly cause dangerous swimming conditions.

How To Use Pool Shock To Purify Water

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How Long Should It Take To Shock Your Pool

Shocking the pool only takes a few minutes of your time, but the waiting out process should be a few hours at the least.

How Much Pool Shock Do I Need

Breakpoint chlorination is a level of chlorine at which point molecular bonds are broken apart. Conveniently, this is also the point at which chloramines, algae and pathogens are removed from the water.

Can I Just Drop Pool Shock Right In

As long as you have shock that doesnt require pre-dissolving, adding pool shock to your pool is unbelievably easy. All you have to do is walk slowly around the perimeter of your pool and pour it straight in.

How Long After Shocking A Pool Before Is It Safe For Swimming

Generally, you should not swim in a pool for 8 hours following shock treatment. Be guided by your shock treatment of choice and follow the manufacturers instructions.

Prevent Algae All Season Long

For a clean and algae-free swimming season, we recommend to start treatment before the first swimmers even jump into the pool. After shocking your pool, it is a good idea to add either Leslies Algae Control or Pool Perfect + PHOSfree to your water.

Add The Shock To The Pool

Following the manufacturers instructions, measure the correct shock treatment dose. You will need to know the volume of pool water as well as your water testing results above to administer the correct dose. Many treatments will require you to mix up the treatment with water in a bucket first.

How many gallons of water should be in a pool?

However, an in-ground pool should carry above 31,000 gallons of water. To calculate the number of gallons a swimming pool has, we need to measure and multiply the breadth, length, and average depth and multiply the resultant value by 7.5 for a rectangular pool, 6.7 for an oval 5.9 for around the pool.

How to treat algae in pool?

Tips To Combat Algae In Your Pool 1 Constantly use the doses of medicine appropriately and at the right time for maximum effectiveness; if not, all your efforts will be wasted. 2 Brush the whole pool, especially areas with visible signs of algae. The brushing process may be done only on the first day of treatment. 3 Regularly look into the filter pressure to clean as the need may arise.

Why is the calculation of the size of the pool water important?

The calculation of the size of the pool water is essential. The cost and effectiveness of the liquid chlorine are high, and the consistent treatment of the pool water is highly determinant to the health and well-being of swimmers. Reader Interactions.

Why do saltwater pools use chlorine?

The reason for this is not far-fetched. Saltwater pools use chlorine generators to produce a chlorine compound, which is almost like the chlorine present in shock treatments.

Is 65 CYA good for a pool?

For hot and sunny temperatures, the 65 CYA is moderate enough. Just ensure you add enough liquid chlorine to keep the FC over the minimum level for your CYA level pending the time you can add more. You can make use of the pool calculator too.

Can you shock a pool with liquid chlorine?

Definitely, the liquid chlorine can clear a green pool, but the amount of shock needed to do that depends on the pool’s level of dirtiness. The process will be done for several days before the water is clean enough. However, have it at the back of your mind that you cannot over shock a pool.

What does shock do to a pool?

What does pool shock do? Adding pool shock to your pool is kind of like power-washing your swimming pool water. By adding higher-than-normal dose of pool sanitizer to your pool water, you’re effectively killing algae, bacteria, and other contaminants -- and making sure they can’t come back to affect your water quality.

Is calcium hypochloride good for pools?

Calcium hypochloride - or “cal hypo,” as the pros say, is a super-concentrated form of chlorine that’s sold in granule or tablet form, and you need to pre-dissolve it before adding it to your pool. It’s super-affordable -- and super-effective at killing algae and harmful bacteria.

What to do if you put too much shock in your pool?

If you put too much shock in the pool, simply wait it out. If you have a cover on your pool, take it off. The more sun that hits your water, the faster it will dissipate. Technically, if your free chlorine levels are holding up swimming UP TO your shock level, depending on your CYA, is safe.

Why do you shock a pool?

The point of shocking your pool is to get rid of all of the dirt, chloramines, and bacteria in your pool by introducing a large amount of concentrated chlorine to your water at once. When shocking your pool, you are adding so much Free Chlorine that it breaks the molecular bonds of the chloramines. You want to reach this breaking point every time ...

What happens if you don't give your pool water enough time to breathe?

If you do not give your pool water enough time to breathe between treatments, you are compiling all of the cloudiness at once. At this rate, you won’t see any improvements. Still, before adding shock or chlorine, we recommend that you test your pool water first.

Can you over shock a pool?

There might come a time when you “over-shock” your pool. Adding more shock and more shock to your pool won’t speed up the process. In reality, it does the exact opposite. Another mistake that goes hand in hand is measuring your chlorine levels too soon after you have shocked the pool.

Can you return to a pool after shock?

If the water clarity prevents you from seeing the bottom of the pool, we recommend you do not return to the pool. In short, test your water a few days after you have shocked your pool to determine exactly how high your free chlorine levels are. Don’t forget to review the instructions on the back of your shock.

Do pool test strips have chlorine?

In fact, most manufacturers do not design their test strips to withstand extremely high levels of chlorine. If you have just shocked your pool and you measure your chlorine levels, it may appear like you have no chlorine at all. As a result, pool owners continue to add more shock.

Can a pool shock cause more chloramines?

Failing to hit the breaking point can potentially cause more chloramines . There are several different kinds of pool shock. They have different chemical compositions and purposes. For more information, you can review our article on the differences between pool shocks.

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