Why Is My Pool Water Grey? [Solved!]

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There is no question that pools are a luxury item and an enjoyable space to be in during the day. Unfortunately, not all pools are created equal. There is a wide variety of issues that can cause your pool water to become discoloured.

The main thing to keep in mind is that the water in your pool should be crystal clear. Otherwise, it might be time to find a new hobby. The following are some of the most common reasons why your pool water could be turning that iconic cloudy colour.

Temperature Of The Water

The water in your pool will always be between 15°C and 30°C. The temperature of the water directly affects its clarity. Keep your pool at a comfortable temperature between these two numbers to ensure that your water remains crystal clear. If you have any doubts as to whether or not you have picked the correct temperature for your pool, then simply ask any pool professional. They will be able to assist you in finding the perfect thermal balance for your setup.

If you live in a hot climate, then your pool will need to be cooled down during the day. This is mainly to ensure that the water stays at the correct temperature range. As a general rule of thumb, your pool should be 10°C to 15°C lower than your room temperature. Setting your pool up to be temperature-controlled is an easy way to guarantee crystal clear pool water. The setup will automatically regulate the temperature of the water in your pool.

Dissolved Gas In The Water

Dissolved gases in water cause the water to take on a hazy appearance rather than the sparkling clarity of freshwater. There are many possible sources of gas dissolved in your pool’s water. The most common source of gas is atmospheric carbon dioxide (CO2). This is a greenhouse gas that is slowly but surely turning our planet into a super-earth. It is also one of the primary reasons why your pool water is turning that iconic cloudy colour. If you are not aware of how much gas is present in your pool, then you should be. The easiest way to test for gas is with a portable dissolved gas meter. It will be able to detect small quantities of CO2 and several other gases that can be found in groundwater.

Falling Dries

If there is one thing that can cause your pool water to become discoloured it is falling leaves and other plant matter. They can block the sun’s light, which can cause a yellowish tint to appear in the water. As the leaves and other plant matter accumulate in your pool’s filter, it will gradually discolour the water until it turns a murky brown.

This issue is usually caused by algae. This is a type of living organism that will grow in huge quantities wherever there is enough sunlight and water. It is most prevalent in warm climates, like the southern part of the U.S. There are many different types of algae that can cause discolouration in your pool. They are all toxic to some degree, so ensure that you have the correct credentials before you start cleaning it.

Water With A Suspended Solid

Another significant factor that can cause your pool water to become cloudy is the presence of any suspended solids in the water. These materials are usually smaller than 1mm in size, which is much smaller than the typical size of a human hair. They become suspended in the water because of various factors. The most common causes are plants that shed their leaves into the pool, which then become food for various types of algae. It is also possible for waste products from the household, like pet hair and toilet paper, to find their way into the pool and become food for whatever organism is eating it. The list of possible causes is endless, so be careful not to put yourself in the position of having to constantly cleanse the water in your pool.

These are just some of the more common reasons why your pool water might become cloudy. Remember that there is no typical answer as to why this could happen. It all depends on the specifics of your pool and what is causing the discoloration. In most cases, the water will clear up on its own after a while. It just takes a little bit of patience on your part. If you notice that the water in your pool is looking a bit dull, then this could be the sign that it needs to be cleaned up and replaced.

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