What Causes Clear Water Iron In Pool? [Expert Guide!]

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Although iron is good for your health, too much of it can be harmful. The same goes for swimming pools. Too much iron can discolor the water and make it seem cloudy. This is especially dangerous for children, the elderly, and those with illnesses. If you suspect iron is causing cloudy water in your pool, contact your local pool company or the water quality control agency to determine the level of the element in the water. They will be able to advise you on how to proceed. If you are unable to remove the element from the water yourself, it is advisable to hire a professional pool cleaner to do it for you. For those trying to maintain a healthy lifestyle, having a clear pool can be a luxury that warrants the occasional clean of the water. In addition to the above, there are also other reasons why the water in your pool could be discolored.

Water Chemistry

Water chemistry is the study of water molecules and how they form acids, salts, and other compounds. The pH levels in the water determine its acidity or alkalinity. The pH scale commonly ranges from 0 to 14. A pH of 7 is neutral or right in the middle of the scale. Anything below 7 is characterized as being acidic and anything above as being basic (alkaline). For example, pool water that is slightly acidic has a pH of around 6.5 to 7. Most pool water is around 6.8 to 7.4, which is slightly acidic. As a result, the element iron will be more soluble in acid water than in alkaline water. This in fact is what causes the iron to appear more prominent in the water as well as discolor it. The pH of your pool water can be determined by sending a sample to a laboratory for testing. They will be able to tell you what is causing the discoloration and if it is soluble or not in water. This is why maintaining a healthy pH level in your pool is so important.


Algae is another substance that can be present in large amounts in a swimming pool and cause major damage. Although they are a form of plant life, algae are not plants and cannot be used in the same way. They thrive in polluted water and will reproduce rapidly, which results in a visible greenish tint to the water. This rapidly increasing population of algae will eventually cause your pool to become almost impossible to maintain. It is important to keep an eye out for signs of algae infestation in your pool, which include strands floating in the water or a green tint to the water that is visible even under dark skies. This is also an indication that you need to have your pool cleaned more frequently than usual or that you are experiencing a rapid increase in algae growth. In addition to the above, algae are known to interfere with the efficiency of oxygenation in the water. This is why it is important to keep your pool clean and free of all debris including algae and leaves. If you have a spa pool, make sure that the water stays between 4.4 and 8.8 degrees Fahrenheit to remain crystal clear. The above are just a few of the things that can be present in your clear pool water, making it a cause for concern. If you are not experiencing any of the problems mentioned above, then there is no cause for worry. Just keep a look out for any strange algae growth and maintain a healthy pH level in your pool with the proper chemicals.


Filtration is the process in which suspended particles and other impurities in the water are removed. The most common type of filtration used in swimming pools is sand filtration. In this process, filtered water is mixed with a small amount of salt before being pumped back into the tank. The salt enhances the effectiveness of the filter, allowing for better cleaning of the water. Filtration alone is not always sufficient to remove all impurities from the pool water. This is why additional steps such as chemical treatment are often needed. Depending on the levels of impurities in the water, it could be necessary to add chlorine or bromine for a while, or even a full on chlorination. The above are just a few of the things that can be done to cleanse your pool water. Keep in mind that the proper way to maintain a clean and clear pool water is by regularly testing it and reacting appropriately to the results of the test. Regular pool cleaning, whether you do it yourself or hire people to do it for you, will go a long way towards keeping your pool free of all impurities including those that leave behind a grayish tinge when they settle to the bottom of the pool.

Many different things can be present in your pool water that may cause it to become cloudy. It is important to determine the exact nature of the problem so that you can properly address it. The above are some of the most common causes of clear water iron in pools. Knowing the root of the problem will help you find the correct solution.

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