When to Use Pool Shock: A-B-C Pool owners are amazed at how much money they save by adding a chlorine-free oxidizer instead of chlorine shock to the pool when the total chlorine levels are appropriate. Things you will need. bags, making it easy to calculate how many bags your pool will require. To start the process, you will need a good chlorine shock. When the algae begin to pop up, you should utilize a shock type with extra chlorination or other cal hypo alternatives. It’s super easy to shock a pool. If you have a light green pool, you need to shock your pool (adding more acid and chlorine than usual) in order to kill the algae. On opening, after you’ve balanced it’s pH level, shocking will sanitize and oxidize the pool, restoring its clear water. Additionally, you should test the free chlorine level before swimming. Whether you need a remodel, a new pool, or just some maintenance help, HomeAdvisor will find the best professional for the job. Pool shocking is usually done at night, when the sun no longer shines on the water. By shocking your pool consistently, you can create the right amount of chlorine that keeps your pool and family safe. We partner with HomeAdvisor to help you find the best swimming pool maintenance and cleaning services in your area. Pool chlorine is designed to eliminate any existing bacteria in the pool so that it is healthy for people to swim. It is also done throughout the entire year, just less often during cooler months. It is also essential to shock it after these events too. If using granular shock, you’ll need a 5 gallon bucket for this part. HTH Green to Blue Pool Shock System transforms water from green to blue Ideal for pool openings or severe algae blooms Requires 2 treatments for 20,000 liters or 1 … This will give you an idea of how much shock you need. Always add the shock to the water – not the other way around. If using liquid chlorine, pour it around the perimeter of the deep end of the pool, and close to the surface to avoid it splashing up. As discussed earlier, the bigger the pool, the more bags of shock that will be required to superchlorinate the water. Another superb feature of Dichlor is that you do not have to dissolve it beforehand. So, when are the specific circumstances where you must shock the pool? It is an essential maintenance step, and it implies pouring three to five times more chlorine or other shock substances into the water. [1] X Research source If you have to shock during the day, use a chlorine stabilizer like cyanuric acid to preserve as much chlorine as you can. We encourage our spa owners to shock their hot tubs at least once a week! For recommendations on specific pool shock products, read my guide on the best pool shock. Many homeowners dread cleaning their pools. After your shock is measured, slowly add your shock into your spa (according to the instructions). Follow the manufacturer’s instructions. If there is any undissolved shock left, add some pool water, mix gently, and pour it in the pool. Adding chemical shock to your pool (which is also known as super chlorinating your pool) is essentially tripling or quadrupling the regular amount of chemicals in your pool water. After 20 minutes, you may re-cover your spa or hop in for a soak if your water tests come back within range! Pool water testing is easy to do using test strips or liquid test kits. You can choose to shock by using a chlorine based shock like our Super Pool Shock, or use a pure oxidizer like our Chlorine-Free Shock. When shocking the pool to remove chloramines, add 10-15 times the amount of combined chlorine, and maintain that high level for several hours. Find out the volume of your pool. Dichlor usually contains between 50% and 60% chlorine, and it can be an excellent solution for both shock treatments and standard chlorine doses. Note: we recommend reading the instructions as some pool shock can vary in its dosage. Using a wooden stir stick, mix the solution until the shock is fully dissolved. The typical chlorine smell that you experience around the pool does not mean that it has been cleaned. Pool shock refers to a granular oxidizer, a powdered form of chlorine that is used for pool water treatment. To find the individually combined chlorine (CC) level, you deduct the FC from the TC. Additionally, if your pool is extremely green with algae, shocking the pool more than once may be required. The next step is calculating the optimal amount of shock that you will need to mix up. Shocking a pool is part of regular maintenance during the warmer months. Pool Maintenance Cost: How Much Does It Cost To Run A Pool? When your free chlorine levels are too low, bacteria, algae, and chloramines begin to crowd your swimming pool and make it unsanitary. The free chlorine level should be between 3 and 5ppm to swim in safely. Shocking your pool on a regular basis can prevent this from happening However, whenever your pool is stuck with an algae green color, you don't have … Around this time, you should also prepare the shock well ahead of schedule in a 5-gallon bucket. Pour the mixture from the bucket into the water around the … Algae outbreaks are also a key signal for pool shocking. I’m sure you’d rather not have to deal with damage to your pool’s deck, finish, or yourself for that matter! It is smart to confirm the number on the packaging of your shocking chemical product that you decide to use. Over time, as chlorine works to destroy contaminants, the combined chlorine level rises and this is far weaker as a pool water disinfectant. Likewise, an increase in the number of people using the pool will bring in more organic bacteria, resulting in a chlorine level decrease. 10 times the amount of the combined chlorine level must be added to the pool water in order to raise its free chlorine level and reach breakpoint. The amount of time for shocking a pool, and for those to wait before swimming, is typically 24 – 48 hrs, or when the available chlorine levels are back to within the 2.5ppm to 3.5ppm range. Next up is determining the amount of shock needed for your pool. You'll need 2 pounds of pool shock for every 10,000 gallons of water in your pool. Your swimming pool may need to be shocked if any of the following scenarios have occurred: The frequency of pool shocking isn’t set in stone, and it really only needs to be done when your water starts going haywire. The purpose of shocking a pool is to quickly increase the concentration of free available chlorine. On closing, pool shock is used as a disinfectant to prepare the pool for the winter months. Also, make sure your pump and filter are running all night. Algae feeds off high pH. Follow these steps and you’ll become a pool shocking master in no time. You should always be used after dusk to let at least eight hours pass before you can swim again. Wearing the appropriate protective attire is a must. He also holds multiple patents for pool performance products he has engineered over the years. We recommend using a DPD Water Test Kit or Leslie's Test Strips to test for chloramines, telling you when to shock. To calculate your pool size in gallons, the formula used is Length (ft) x Width (ft) x Depth (ft) x 7.5. To find out your combined chlorine level, test your water and subtract your free chlorine level from the total chlorine level. cloudy water, algae turning it green), but most water pollutants will be invisible. Lastly, if you have many people use the pool at once for a party, the water can get contaminated quicker. These little granular buggers can damage the liner/finish if left to their own devices. Here's how to shock a pool: Test the water. The worst that will happen is the water has an abundance of chlorine for a few hours. Start by filling the bucket with water (about ¾ full), and then adding in 1 bag of shock. You can also simply add more chlorine, and pouring household bleach into the pool is one way to do this. You’ll also want to apply shock treatment when opening the pool, and closing it down for the season. Adding pool shock to your pool is kind of like power-washing your swimming pool water. You must decide on a quality pool shock product or two that fits your needs, and then narrow down a consistent pool maintenance schedule. Compare quotes for free from fully vetted pool professionals. How to Shock a Swimming Pool Swimming pools provide hours of leisure and entertainment but they also come with maintenance. Shock is especially important to add to your pool before and after it has been heavily used. If this is the case, you should wait 24 hours between shocks. It would be best if you kept a log by your pool to stay on top of shocking it consistently. Many pool owners and pool service professionals shock a pool during spring opening and other times of the year when they want to “super-chlorinate” the water. Determine the amount of shock and pour it into the water. Shocking the pool only takes a few minutes of your time, but the waiting out process should be a few hours at the least. Pool shocking doesn’t mean sending 5000 volts of electricity through the water (although that would be pretty cool to see). Another superb feature of Dichlor is that you do not have to dissolve it beforehand. When you are using this type of pool shock, it must get dissolved before adding to the pool. What does pool shock do? It is a lifelong process that takes focus and discipline. Shocking a pool will destroy bacteria, algae and organic waste that regular chlorination may have missed. However, because it contains CYA, CYA levels can increase. There are many different products that you can utilize, but here are the most popular and effective ones. Shocking depletes combined chlorine and increases free chlorine. Of note, your water may become temporarily cloudy, and cal-hypo may also increase your water’s calcium hardness. Make A Shocking Solution. Now, you can let the shock do it’s job! Leave the shock in the water for a while to do its work. Chlorine fumes can also irritate your nasal passage and lungs if breathed in. This chemical, also known as cal hypo, is one of the more affordable and practical strategies to shock your pool. So be mindful of the power of pool chemicals. In addition to the noun pool shock, it can also be used as a verb, in the act of shocking a pool, or adding granular oxidizer (pool shock) to the water in sufficient quantity for the desired change. Water testing kits can measure the FC and TC of your water. poolonomics.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. A pool shock is a project of inputting chlorine or non-chlorine chemicals to your swimming pool to raise your level of free chlorine. … After confirming the pool pump works well, you can dump the pool shock solution into the water’s outer edges. This system makes chlorine much more effective when it gets implemented, but it will lower the amount of chlorine required. When done at a regular frequency during the summer and high bather load months it is also a helpful and proactive way to retain a minimal level of chemical exposure to you, your family and, if you are a commercial … So, what are the different kinds of pool shock? This is because UV rays destroy chlorine at near warp speed. Next, you should ensure that the pool pump operates effectively so that the pool shock can mix in the pool. The pH level should be between 7.2 and 7.6, with total alkalinity being between 80 and 120 ppm. This will raise the level of chlorine for a few hours and help destroy algae and bacteria. First up, you’re going to need a few things to start. By understanding how different types of chlorine shock affect the pool’s water, how to use them, and the best time(s) to shock, you’ll keep your pool clean and clear with little to no trouble at all. Shocking frequency also depends on how much use the pool is getting, and what kind of weather it’s being subjected to. Shocking your swimming pool can eliminate the accumulation of chloramines and other harmful chemicals. When you reach this ratio, it will effectively break up those harmful bonds and make your pool clean again. Depending on the number of people who use your swimming pool, the chlorine levels will fluctuate. … Leave the shock for the recommended amount of time before you go for a swim. Some things you’ll be able to visually see (ie. Shocking your pool is not a one-time thing that you should occasionally do. However, what it does refer to is the rebalancing of pool chlorine levels, keeping the pool water safe to swim in. By shocking your pool, you replenish your chlorine level and oxidize chloramines (combined chlorine), which are a gaseous irritant that are hazardous for human consumption. Remembering how all the different chemicals interact to keep your pool clean can be confusing at the best of times, and daunting at the worst of times. Once you run through the pool shock instructions carefully a few times, you will soon be a maintenance professional that keeps your pool safe and clean. This won't clean your pool properly, so wait until the evening to shock. If this sounds like your pool (anything 30,000 gallons and up), repeat this process as necessary. When working with pool shock, you should wear gloves, eyewear, and clothing you don’t mind ruining. Pool shock is a chemical treatment that helps break down contaminants – such as leaves, dirt and debris, even oils from your skin -- that can gradually build up in your pool water. Rain and thunderstorms are not always things we can plan for, but you should try and shock your pool afterward. Twilight hours give the shock an extended amount of time to effectively kill everything in its path. Slowly pour the shock into the water. Chlorine is a double-edged sword when it comes to existing in your pool. The first step in shocking the pool is to test the water and calculate the current ratio. The benefit of this is the time saved and the possibility of performing an incorrect calculation. Either dissolve the shock in a bucket of water first or add the shock directly to your pool (depending on the instructions). Pro Tips! If you have a pool party, you’ll most likely have to shock the pool once it’s over. Biguanide To Sanitize Your Pool: Should You Use It? If levels are already high, you should use non-chlorinated shock. Fill a bucket with water and then add the chlorine shock to the water. This will help disperse it evenly in the pool and save your liner or pool finish from being damaged. It dissolves much more efficiently, but you can add it immediately to the pool without having to wait for it to disappear. Balancing the water can be done by adding more chemicals to raise or lower the pH level until it is neutral. As the chemical levels are so high during this process, no one should enter the pool, as the chlorine can attack the skin. The ammonia is a product of the sweat, urine, fertilizers, sunscreen lotions, bird droppings, and other exterior radicals that find their way into the pool. You can do this with a commercial product, which works partly by freeing the chlorine that has already formed compounds with contaminants. Just stay with us till the end to know the ins and outs of shocking a pool. The Truth About Hydrotherapy (And How You Can Benefit From It). Once you input the pool shock into the water, you can be patient and allow the pump to keep running for at least six hours. But what are the key elements to consider when shocking your pool? How to Open an Above Ground Pool (Step-by-Step), 5 Things You Should Know About Vinyl Pool Liners. You can usually find this at the store in a granular condition. If you want to shock the pool successfully, you should aim to raise the free chlorine level 10 times greater than the number of chloramines. Shocking your pool as part of your weekly pool maintenance routine will … Adding chemical shock to your pool is an important part of maintaining safe and healthy pool water. Out of the three pool shock types, Dichlor is the most straightforward and safest product to use. If your chlorine levels are low, a chlorinated shock is required. Scoop out as much debris as possible. A potent smell of chlorine usually means that the water has been improperly treated, but it does not necessarily give you the signal when it is time to clean the pool. Once the sun comes out, it will quickly destroy the chlorine and bring the pool back to a level that is safe for swimmers. Remember that the only way to reduce Cyanuric acid is to drain and refill your pool or spa water and you need to be very careful. He has built pools and natural landscapes for hundreds of homes and businesses across the country. What You Should Do to Your Pool After it Rains, How to Get Rid of White Water Mold and Pink Slime in Your Pool, How to Remove Algae from a Salt Water Pool. Before you add shock treatment, you need to test your pool water and balance its levels. After shocking your pool, wait at least 24 hours from when you last added chlorine or a shock product to your pool. It would be best if you looked to see that the free chlorine level is ten times greater than the combined chlorine levels. Also of note, if you were wondering, you can’t overshock a pool. Heavy rainfall and storms can disrupt the pool water’s chemical makeup by introducing backyard debris and air pollutants like dust and pollen spores into the water. You should monitor the pH level to measure the free chlorine (FC) and total chlorine (TC) of the swimming pool. Ensure the pool pump is running. Anytime you’re using pool chemicals, you want to practice good safety protocols. Chlorine isn't as effective when your pH is high. 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. Sunlight reacts with chlorine, so if you shock during the day, your free chlorine levels will be much lower. If you are operating on a weekly oxidizing and shocking schedule, you should alternate between a non-chlorine and chlorine shock each week. This is mainly due to the fact that it should only be done once the sun has gone down, so you have a limited window of when the shock will be most effective. Take out a pool brush and remove them pronto. After you have let the time pass, you can then test the water once again to confirm the optimal chlorine levels are present in the pool. Learning how to shock a pool doesn’t have to be a convoluted process. If you want a clean pool, you must break the chlorine bond (chloramine) and shock it. In some cases with granular shock, you may end up with undissolved granules on the walls of the pool, or at the waterline. Let’s see what we have kept for you! Shoot us a note and we’ll be happy to help. As a general rule, 1 lb. There are some pool owners who like to shock once a week to keep the water its cleanest, while others will do it on a 3-week or monthly cycle. As you can see, there is a system that goes along with shocking your pool, but the process is not too complicated. Step 5 In this article, we guide you through the process of shocking your pool with confidence. What are the steps to success? Cal-hypo has a high pH and will temporarily raise those levels, so it’s a good choice for pools that test at a normal or low pH level. Shocking a pool is a regular part of pool maintenance during the swimming season. This odor exists when the chlorine in the pool gets combined with the nitrogen in oils, sweat, urine, and other bodily fluids. If you are using liquid shock, you can add this directly to the pool water (be very careful!). This ensures the pool shock will be fully distributed in the water to destroy all contaminants. This has to be carefully monitored otherwise you may need to invest in a CYA reducer, or even drain/dilute your pool. Here’s a breakdown of the top 3 pool shocks. Some even pay a pool guy to take the task off their hands. If using granular shock, you’ll need a 5 gallon bucket for this part. Pool shock is a great tool for keeping your pool’s chemistry balanced, and it is the best way to eliminate algae and return you water to pristine condition. However, in situations which call for non-chlorinated shock, you can be back in your pool 15 minutes after its application. Pool shock is a “super dose” of granular pool chlorine that oxidizes chloramines (combined chlorine) and kills bacteria in the water. The majority of backyard pools are usually built at 10,000 or 20,000 gallon sizes. Learning how to shock a pool isn’t rocket science, and it’s something everyone pool owner should learn to do. The only thing you want soaking up your good pool shock is the water. With different pool shocks or shock products are available, how do you know which one is best for your pool? Here’s a quick crash course when it comes to pool shock. You'll want to shock your pool either in the late afternoon or early evening to allow the chlorine to do its job for the longest amount of time. You should also make sure to shock your pool when you are opening and closing for the season. Wait until the sun is going down to shock the pool. Much like cal hypo, you must implement it after dusk, and you must wait at least eight hours before reentering the pool. Questions? As a pool owner, you’re gonna need to learn how to shock a pool. We work with HomeAdvisor to match you with the best swimming pool contractors in your area. A stir stick or pool pole. Fill the bucket up about 1/2 full of water. While the storm is occurring, your swimming pool will get contaminated by rainwater, debris, and dust. As shocking is best done at night, it gives the pool a solid 8 hours to circulate the chlorine and fully disinfect the pool. They give you quick and accurate readings regarding the chemical levels in the pool. The product must also get used after dusk, and it must sit for at least eight hours. Related: Best Dog Ramp for Above Ground Pool . Once you see this number, you now know how much chlorine will need to be added to the pool. During this shock period, the chemical levels are at a heightened state and help to rid your pool of unwanted bacteria and other organic pool matter.Every pool owner should be familiar with shocking their pool as it's an important maintenance step in keeping your swimming pool crystal clear, even after half the neighbourhood has been in it.However, a different kind of shock … If using dissolved granular shock, make your way around the perimeter of the pool and slowly pour the solution into the water. Pool owners and pool service professionals shock a pool to “super-chlorinate” the water. The ideal way to shock a pool is when the pump is running. Dichlor usually contains between 50% and 60% chlorine, and it can be an excellent solution for both shock treatments and standard chlorine doses. For such cases, stir the water with a pole or other large object to ensure the even distribution of the pool shock. What this allows for is the power of the return jets to circulate it quickly. Most shock is sold in 1 lb. Never add water to chlorine, as this may cause splashing. The shock takes action immediately inside the pool, and it may turn the water a milky white for a short time before causing the water to become crystal blue. In some cases, you may not have the pump running for some reason or the other. After you have balanced the other chemicals, you can shock the pool so that you can eliminate any bacteria, make the water clear, and oxidize any particles. You should also be aware of the pool’s combined chlorine level, so that when you shock its reaching breakpoint chlorination. For trichlor and dichlor, make sure Cyanuric acid level is a little lower because its level in water will rise. of shock is used for every 10,000 gallons of pool water. You will need to check the pH level in your pool. Michael has over 25 years of experience in the swimming pool industry. 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