Why Does The Water In My Pool Turn Green? [Solved!]

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The water in your pool is not supposed to be green. It’s supposed to be clear and odorless. So what caused the murky water in your pool to turn green?

Oftentimes, pools will develop a green tint due to algae growth in the water. However, this algae growth can be removed by routine cleaning. There are several different kinds of algae that grow in water, all of which are harmless and can’t grow in large quantities. Still, if you’d like to see your pool look clean and clear, it’s best to take care of the algae growth as soon as possible.

The Causes of Algae Growth In Pools

There are several different causes of algae growth in pools, but most of them can be traced back to a single event. One of the most common causes of algae growth is heavy metal pollution. Most cities have fallen victim to heavy metal pollution from vehicles and industrial processes. While there are no specific signs that your pool is contaminated with heavy metals, it’s best to be on the safe side and test the water for lead, copper, magnesium, iron, and zinc levels. If the results come back higher than what’s considered healthy, you’ll need to have your pool chemically cleaned.

Chemical pollution also causes algae growth in pools. Just like in lakes and oceans, chlorine and bromine in the water will disturb the balance of nutrients, which results in algae growth. In addition to chemical pollution, sunlight is another common cause of algae growth. When sunlight hits the surface of the water, it causes algae to grow rapidly. If you live in a place with a lot of sunshine, you’ll need to be extra careful with the light levels around your pool or else you’ll end up with an unappetizing green tint to your pool. Another common cause of algae growth is excess nutrients. Just like in earth’s oceans, lakes, and rivers, our backyard pools can become over-fertilized due to excessive amounts of fertilizer running off from nearby fields or falling from the sky. Excessive amounts of nitrogen and phosphorus can cause algae growth in pools. Still, if you add too much fertilizer to your pool, you’ll likely cause a massive algae bloom that’ll put a serious dent in your pool’s appearance.

How To Remove The Green Tint From Your Pool

If you’d like to remove the green tint from your pool, you have several options. You can remove the algae by taking out the filter and replacing it with a fresh one. In most cases, this will cause a complete flush of the pool and let it shine pure white again. Still, this won’t solve the problem completely and if you’d like to get rid of the algae completely, you’ll have to resort to more drastic measures.

While it’s not recommended to do so, you can pull the entire thing and start over. When the pool was first constructed, the installer probably used a fabric filter with a mesh screening and sand as the primary filter material. If these are the same materials you use today, there’s no need to purchase new equipment. Simply take out the entire thing and replace it with a new one. Since most pool filters are reusable, this is an inexpensive and eco-friendly solution. Still, pulling out the pool equipment and starting over is not something you want to rush into without careful consideration.

If you’d like to avoid the hassles of taking out your pool equipment and starting over, you can use a water purifier to filter the water before you use it. Alternatively, you can invest in a pool cleaning machine that will thoroughly clean and purify your pool water. Whether you pull out the filter or go the extra mile with a pool cleaning machine, algae will be eliminated and your pool will look pristine again.

Final Word

Algae growth in your pool is not something to be alarmed about. As long as the growth isn’t hindering the operation of the pool, you can live with it. Still, if you’d like your pool to remain crystal clear, you’ll need to maintain it with a water purifier or use a pool cleaning machine on a regular basis. You don’t want to end up with algae growing in your pool either, so it’s best to be on the safe side and avoid it altogether. Fortunately, excessive algae growth doesn’t pose any serious threats to your pool’s health.

If you find algae growing in your pool despite your best efforts, call the professionals. There are several different types of algae that grow in water, all of which are harmless and don’t pose any risks to your pool’s health. Still, if you’d like to be on the safe side, it’s best to remove it before it reaches a significant amount. Algae is a natural part of the aquatic ecosystem. It provides food for creatures in the water and helps keep the balance of nutrients in the water. As long as it stays at a manageable level, it’s not a problem. Just remember not to swim or dive in the water if it’s over a certain amount.

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