How much chlorine to shock a pool

how much chlorine to shock a pool

Can You Over Shock a Pool?

How much liquid chlorine to shock a pool with algae? The minimum chlorine amount required for this is 30 ppm. Factors that lead to algae outbreak in a pool are many bather load, high temperature levels and more sunny days. Algae spore may turn sparkling pool waters into green color murky mess if there is no any apparent warning for this. Chlorine between ppm Free Chlorine is recommended for residential pools and parts per million for commercial. Shocking the pool requires raising the free chlorine over 10ppm. Negative effects from high chlorine greatly depend on the amount of Cyanuric Acid (CYA or Stabilizer) present in the water.5/5(1).

JavaScript seems to be disabled in your browser. For the best experience on our site, be sure to turn on Javascript in your browser. You can find in this section technical support guides and information to help you get the best out of your pool or spa.

Read more about our delivery policy here. Knowing your pool's volume is vital when making adjustments as all calculations and dose rates are based on it. View Pool Calculator. See what our great customers are saying about us on Truspilot. View Reviews. Shocking dose your pool is a critical process to make sure your pool has that crystal clean look! This process will raise the chlorine level by approximately 5 times, killing bad organics, unfilterable waste, algae and bacteria making your pool a safer environment for you and your family.

Shocking dose your pool is important and should happen on a regular basis, ideally during the peak season on a weekly basis or sooner after heavy use of the swimming pool. Your shock treatment should take into consideration the amount of times your pool is being used and also the temperature of your pool water. To make sure you are shock dosing your pool at the correct time then it is important to check the chlorine levels in your pool, this can be done using a test kit if the chlorine and the free chlorine are below these levels then this means it is time to shock your pool.

We recommend on shocking your pool at least weekly during the summer and then fortnightly during quieter periods or if the water is hotter like a spa or hot tub then at least weekly use OPC SPA Non Chlorine Shock Granules.

If you want more information please refer to our Help and Advice section. We recommend that shocking should take place when the sun has gone down, the UV rays from the sun can affect the chlorine or other chemicals so this will ensure you are getting the maximum benefit from the chemical, the end of the what size wheels for longboard tends how to remove a child support lien be a popular time to shock dose the water.

Ensure the cover is removed whilst shock dosing, the swimming pool or hot tub will need to be uncovered throughout the shock dosing process. If your using chlorine shock granules then these must be dissolved first, following the instructions on the packaging carefully mix the chemicals with water.

Remember never add water to the chemicals always add the chemicals to the water. The Chlorine shock mixture will then be added directly to the water with the filtration circulation running; never shock dose the water when the circulation is turned off. With the filtration circulation on slowly add the solution directly in front of your return line.

Poor the solution in slowly enough to make sure none of it drops and rests on the pool floor and that all the solution is dispersed throughout the swimming pool water. High chlorine levels in your pool can be very dangerous, make sure that your chlorine levels are safe, you can do this by using a test kit. Ensure the reading for free chlorine have dropped below 5ppm before swimming re-starts. Troubleshooting problems in swimming pools and spas. Read our FAQs here. Online Pool Chemicals.

How to Chlorine shock dose what is the nordic diet swimming pool or hot tub Online Pool Chemicals. Here are 4 handy tips to help you make the most of your pool: 1.

When should I shock my pool or hot tub? If you want more information please refer to our Help and How to report a nurse for misconduct section 2.

When is the best time to shock my pool or hot tub? Make sure your pool is safe to swim or bath before re-entering High chlorine levels in your pool can be very dangerous, make sure that your chlorine levels are safe, you can do this by using a test kit.

After you have completed your shock treatment you can then enjoy a nice clean crystal-clear pool or hot tub. If you need any more advice or chemicals then feel free to visit our online store. Previous Post. Next Post. K only. Fi-Clor Chemicals. Water Testers and Test Kits. Send an Email.

Pool Volume and Chemical Calculators

Jun 11,  · Shocking the pool to a level that is x greater than your chloramine is effective at chloramine removal. For a level at ppm CAC, add enough chlorine to reach a level of 30 ppm in the pool. Chloramines, also known as Combined Chlorine, occur when a chlorine molecule combines with ammonia or nitrogen in the pool water.4/5(2). Jun 15,  · The general recommendation is to use 1 pound of cal hypo shock for every 10, gallons of pool water, and 10 ounces of sodium hypo with around % chlorine to sanitize your pool. Make sure the pool water is at its normal level. Make sure your pool's pH is between – and its alkalinity is between 80– ppm. Oct 15,  · % Liquid Chlorine Pool Shock – Normal Dosage: 1 gallon of shock per 10, gallons of water. Shock Dosage: 2 gallons of shock per 10, gallons of water. Source: Champion Liquid Pool Shock instructions. % Calcium Hypochlorite Granular Pool Shock – Shock Dosage: 1 lb (bag) of shock per 10, gallons of water.

Pool Calculator makes pool chemistry easy. Surprisingly, when it comes to shocking your pool, this rule of thumb can be safely set aside. You can, however, use more shock than you need — or less than is sufficient. Although, if you overdo the shock treatment, you risk getting green hair from chlorine due to the excess chlorine oxidizing the copper in the water. This is a solid form of chlorine that acts as a bleaching agent used to sanitize pool water.

Calcium hypochlorite shock is most commonly found in granular form; however, it can also be found in the form of chlorine tablets. Regardless of whether you use calcium hypochlorite in powder or tablet form, be sure to dissolve the chemical into at least five gallons of water before mixing it into the pool.

Sodium hypochlorite also known as liquid chlorine is another frequently used option for shocking pool water. This is a common choice in pool shock because you can pour the solution directly into the pool without having to dissolve the chlorine in water beforehand. This type of shock is additionally beneficial in the sense that it is least likely to leave your pool cloudy, as granular shock typically does. Lastly, another common form of granular shock is sodium dichlor.

Although somewhat similar in composition to calcium hypochlorite, the main difference is that sodium dichlor also contains cyanuric acid CYA. In pool water, CYA keeps chlorine intact for longer and prevents it from degrading in the sunlight. By using a test kit to check your water and assess your CYA level, you can determine whether you want this additional CYA included in your pool shock. And again, since sodium dichlor is a solid, granular shock, be sure to dissolve it in water before introducing it to your 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, gallons of pool water. If you are using sodium hypochlorite, i.

Another standard measurement point for shocking a pool is to measure the chlorine by parts per million PPM. Some cloudiness is normal and to be expected. In order to clear out a cloudy pool after shocking, you will need to keep your pump and filter on with the circulation continually running.

This will likely take hours. High chlorine levels will bleach your test strip and give you a false reading. The best thing you can do if you put too much shock in your pool is to wait it out. Pro tip: the more sunlight your pool water gets, the faster the shock will dissipate. To get crystal clear water, you also need to have a good filter. The green coloration and the cloudiness have to do with the chemical composition of your pool — specifically calcium hardness, pH, and CYA concentration.

When you shock the pool, you are adjusting each of these levels, depending on which type of shock you choose. If you already have high calcium hardness levels in your pool, you will want to avoid calcium hypochlorite as a shock treatment. Instead, opt for a sodium dichlor or sodium hypochlorite shock treatment to avoid excessive calcium hardness levels.

When you shock a pool, you test and adjust the pH level for a reason. With that said, if you shock a pool outside of the 7.

Lastly, cyanuric acid levels are also important to assess when shocking your pool. However, too much CYA can also lead to this cloudiness after the shock treatment. Here are three important steps to follow:. The most optimal and effective pH level to shock a pool is anywhere between 7.

If the pool water is anywhere outside of this range, the water will not be suitable for the shock, making the treatment significantly less effective. Once you have tested the water, you can adjust the pH level accordingly. If the pH level is below 7. On the other hand, if your pH level is too high, you can use muriatic acid to drop the pH to between 7.

Waiting until after sunset is another way to ensure the effectiveness of shocking your pool. If you attempt to shock your pool during the day, UV rays from the sunlight will degrade the free chlorine, making the treatment far less potent and useful. Further, shocking the pool at night is also beneficial because the treatment will have plenty of time to get the job done.

This means that once the pool has been shocked overnight, it should be ready to swim in the following day after a few hours of filtering to disperse any lingering cloudiness. During the shock treatment, and especially after, it is important to keep your pump and filter on and running.

This will ensure that the added chlorine is evenly distributed throughout the entire pool to get rid of bacteria and algae in the pool water.

Once the shock treatment has been completed, keep the pump and filter running for a few hours to circulate the water. This will clean up the remnants of the shock and disperse any remaining cloudiness. While you may not be too worried about over shocking your pool now, each element of the shock treatment is important.

Learning the ins and outs of how to shock a pool will help you better maintain your pool moving forward. For more tips and tricks on how to maintain your pool or hot tub, check out our blog!

We have the tools you need to keep your pool in pristine condition all year round. Testing your pool helps keep your water safe from viruses, bacteria, and algae, and ensures chemical levels are safe and comfortable. The Pool Volume Calculator makes it easy to calculate the volume of rectangular, oval, and circular pools quickly. There are few things that can spoil your day more than cloudy water in your pool. Testing your pool chemistry can help find the problem. Want to know what the different types of chlorine mean?

Read on to learn about Free chlorine, combined Chlorine, and Total chlorine. Saltwater and chlorine are the two major types of pool sanitation. Read on to learn the benefits and challenges with both! Pool algae is an unfortunate yet common problem many pool owners face. This article describes the types of algae and how you can prevent it.

Click here to try our Pool Calculator Web App. Pool Shock Quick Answers What is a pool shock treatment? How much shock do I need to shock my pool?

What happens when you add a lot of shock? What is a pool shock treatment? Calcium hypochlorite This is a solid form of chlorine that acts as a bleaching agent used to sanitize pool water. Sodium hypochlorite Sodium hypochlorite also known as liquid chlorine is another frequently used option for shocking pool water. Sodium dichlor Lastly, another common form of granular shock is sodium dichlor. Make sure you pay attention to exactly how many drops of the solution you need to add to each test tube section.

If you are not sure how many gallons are in your pool, here is an easy formula: Length of your pool ft. This is an example of what a reading on a test strip will look like. High pH level When you shock a pool, you test and adjust the pH level for a reason.

Excessive CYA Lastly, cyanuric acid levels are also important to assess when shocking your pool. If you make a purchase with this link, we earn a commission at no additional cost to you. If you purchase something through our affiliate links we may earn a commission. More Posts. Buying Guide for the Best Pool Shock. Buying Guide for the Best Pool Algaecide. Popular Posts. How to Test your Swimming Pool Water Testing your pool helps keep your water safe from viruses, bacteria, and algae, and ensures chemical levels are safe and comfortable.

Swimming Pool Volume Calculator The Pool Volume Calculator makes it easy to calculate the volume of rectangular, oval, and circular pools quickly. How to Clear Cloudy Swimming Pool Water There are few things that can spoil your day more than cloudy water in your pool. Saltwater vs. Chlorine Sanitation Pros and Cons Saltwater and chlorine are the two major types of pool sanitation.



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