1/21/2024 0 Comments Sodium hypochlorite poolHow does sodium hypochlorite help to maintain pool water clarity? It can also be used to brush the walls and floor of the pool as a cleaning agent. The best way to use sodium hypochlorite for swimming pools is to add it directly to the pool water and circulate it with the pump. What is the best way to use sodium hypochlorite for swimming pools? If you have hard water (high in calcium) sodium hypochlrite is a good choice of pool disinfectant. Common Questions: When is it a good idea to use sodium hypochlorite in your pool? If the amount of both the free chlorine and total chlorine are out of balance, it means that you probably have a chlorine lock and you will have to shock your pool using a non-chlorine shock. The best way to determine this is to test for both the free chlorine, as well as the total chlorine in the pool using a pool testing kit. Don’t panic though, you can lower the cyanuric acid in your pool using this guide. ![]() However, if you are using liquid chlorine, then you must read the instructions and make sure to add the correct ammount of CYA because too much can block the effectiveness of the chlorine, causing chlorine lock.Ī chlorine lock means that while the pool will test for appropriate amounts of chlorine, it will not sanitize the pool water effectively. ![]() Usually, the chlorine tablets you buy from the store already contain the proper amounts of cyanuric acid. ![]() This essentially means that CYA prot ects the chlorine from the sun and makes it last longer. I have a guide explaining more about stabilized and unstabilized chlorine here.ĬYA is essentially a chlorine stabilizer that bonds with the ions to prevent the chlorine from breaking down. This is where we make use of CYA or cyanuric acid. In less than around 20 minutes, half the chlorine will disappear. Since the chlorine in both sodium hypochlorite and calcium hypochlorite is unstable, it will quickly get eaten up by the UV rays, making it ineffective very quickly. However, if the water that you have is soft water, you will need to add calcium to raise the levels in the water.īoth sodium hypochlorite, as well as calcium hypochlorite, will work as disinfectants and do the job however, the key difference is the amount of each chemical that you need to add to ensure that the levels are balanced. It is a great option for areas having hard water because it does not add calcium. Since cal-hypo contains calcium, it is not used in pools where the water is very hard and has a high level of calcium and calcium scale.Īs we mentioned earlier, sodium hypochlorite does not contain a high level of free chlorine and is also much cheaper to buy. Usually, cal-hypo is sold in the solid form or liquid that is pre-diluted and it contains around 65% of chlorine. Calcium hypochlorite, commonly called cal-hypo contains calcium, while sodium hypochlorite does not. Sodium hypochlorite, as well as calcium hypochlorite, are both disinfectants however, they are different in terms of their composition. Sodium Hypochlorite vs Calcium Hypochlorite You can pour the recommended amount of sodium hypochlorite into the pool skimmer and run the pump to distribute it evenly. Sodium hypochlorite is a very simple pool sanitizer and because it is already diluted, you can add it to the pool water directly. ![]() How to Use Sodium Hypochlorite in Your Pool? When added to water, sodium hypochlorite breaks down into hypochlorite ions and hypochlorous acid, which helps to oxidize, sanitize and kill all the organic matter such as bacteria, algae, spores and human waste such as urine, sweat, oils and spit in your swimming pool. If in doubt check my pool chemistry 101 page – it lists most common pool chemicals and their uses. Not to be confused with sodium bisulfate for pools! I know some of the chemical names sound similar but they usually have different uses. Also, it only has around 5% of available chlorine, which does not make it a very effective sanitizer for your pool. It is not commonly used in pools by itself because it is unstable. Sodium hypochlorite is essentially made up of oxygen and chlorine and has a high pH of 13. Sodium Hypochlorite vs Calcium Hypochlorite.How to Use Sodium Hypochlorite in Your Pool?.
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