How To Fix Your Cloudy Pool

If your pool water becomes cloudy (sometimes overnight! ), returning it to crystal clear can be time-consuming and difficult.

In today’s post, I’ll learn How To Fix Your Cloudy Pool.

Cloudy pool water can be painful. And working on it can seem like a big task. But don’t worry, no matter the pool water problem, there is always a solution.

Cloudy pool water can quickly ruin your fun. Your luxurious dip in your pool becomes a disappointing sight when you see the nasty pool water. What can you do? Do you know why your pool water is cloudy? How To Fix Your Cloudy Pool? Don’t be afraid. My Best Pool Cleaners site will help you get your cloudy pool water back to its sparkling gem state.

What Is “Cloudy” Pool Water?

“Cloudy” describes water that appears milky or murky. Tiny particles in large numbers reflect the sun. The particles range in size from 0.5 to 5.0 microns, making them virtually invisible.

Causes of Cloudy Pool

It helps you understand the cause of the problem before cleaning the cloudy pool water. Pool water can be cloudy for a variety of reasons. The following are among them:

Filter and Pump Problems

Various problems can cause filter and pump problems. If your system is only running a few hours each day, you may not be able to clean the entire pool. If you drive regularly and the water is cloudy, you may have a problem with worn or damaged parts. Other mechanical problems include filter media clogging, poor water flow direction, and a full skimmer basket.

Environmental Factors

Environmental factors that affect the pool are bad weather, wildlife, construction, trees, pool algae, and people. Due to these factors, dust, pollen, and algae outbreaks can cloud the pool. If the pool is green and cloudy, algae may be the cause. However, humans may be the most common environmental factor affecting pool water quality. Not only do various hair care products, skin care products, and make-up go into the water, but people also bring dirt, sweat, skin, hair, and oil into the pool.

Chemical Imbalances

Chemical imbalances are a common cause of pool water turbidity. Testing turbid water using a pool water testing kit can reveal whether the pool water has unacceptable levels of chlorine, unbalanced pH and alkalinity, or too high levels of calcium hardness. Don’t worry if the pool is cloudy after a shock. A well-balanced pool can become temporarily cloudy shortly after a shock. This usually goes away quickly and should not be seen as a problem.

 Excess Particles From Swimmers

Excessive particles accumulated during swimming can cause turbid water. Sunscreens and oils are the most common particles in pools, such as make-up, sweat, bodily fluids, and body fluids. These reflect light and look like a cloudy pool.

Calcium Hardness is too High.

Calcium hardness (CH) is the sum of all calcium dissolved in water. High calcium levels in water are unstable and will also be affected if there is an imbalance in pH or TA. The desired CH range is 100-400 ppm depending on temperature. When CH exceeds 400 pm, persistent turbidity, as well as calcium scaling, often occurs.


If you’ve had a severe storm recently and the pool water is cloudy, that could be the main reason. This is because rainwater can cause nitrates, phosphates, and other chemicals to run into the pool. Heavy rain also dilutes your chlorine levels, making it less effective.

How To Fix Your Cloudy Pool?

So that’s enough diagnosing—I think you get the point. Having identified the underlying causes of cloudiness (and yes, often, one will lead to the other), you can return to your DIY pool maintenance routine with renewed knowledge. Now let’s blast out that cloudiness forever. 

1- Skimming and Brushing

Remove large debris with a sturdy skimmer. Rub the wall well with a stiff pool brush and vacuum by hand.

Do not use automatic pool cleaners. Does not correctly absorb small debris. Then vacuum the pool. However, if you suspect a problem with algae, check the guide on getting rid of pooled algae.

2- Check Water Chemical Imbalance

If the test reveals an imbalance in the chemical composition of the pool water, the balance needs to be restored. This usually involves diluting the pool water by adding chemicals or partially draining it and filling it with fresh water.

The test kit measures chlorine, bromine, pH, total alkalinity, calcium hardness, and cyanuric acid. The chemicals that affect each of these measurements must be present in a particular concentration in the pool water to keep the water clean and safe for swimming. For example, if chlorine or bromine levels are too low, the concentrations of these chemicals are not sufficient to kill algae spores, which can cause algae outbreaks and pool water cloudiness. Free chlorine levels for balanced pool water should be 1-3 parts per million (ppm). The bromine range is slightly more comprehensive, 2-6 ppm. If the level is too low, shock the pool with high chlorine or bromine levels to quickly return the pool water to a stable level.

An imbalance between alkalinity and pH, especially highly alkaline, can cause water to become cloudy, leading to bacterial growth and other safety issues. The pool’s total alkalinity should be kept between 80-120 ppm, and the pH should be monitored.

  • The optimum pH is between 7.2 and 7.8.
  • A pH between 7 and 7.8 is safe.
  • pH below 7 is considered acidic and can cause itching, burning, and redness.
  • A pH balance above 7.8 is an essential remedy that can burn or irritate your eyes.

You can increase the pH and alkalinity by adding an alkaline product such as baking soda (baking soda) or lowering it with chemical additives such as muriatic acid and sodium bicarbonate.

3- Use pool flocculant

Pool flocculants also aggregate small particles, making them easier to remove. The only difference is that it attracts particles to the bottom of the pool. So instead of letting the filter do all the work, you need a pool vacuum to remove the particles. There are some factors to keep in mind when using this process.

  • Particles must be vacuumed manually as using an automated system will not work.
  • Keep the hose running as you will naturally lose a significant amount of water when sweeping cloud particles.
  • You must turn off the filter while vacuuming. This process usually takes about half a day.

4- Filter Support 24/7

The best way is to have the filter clean up the mess.

Everyone knows how important filters are for swimming pools, but sometimes they don’t work properly without a bit of help.

The filter will need to be run continuously for the next few days to clear the cloudy water. You can return to the average filtering time when the water is clear.

Depending on your filter type, the pool will be cleaned faster. For example, filter out excess particles to clear cloudy water faster. If you have a cartridge filter, it will take some time. If you have a sand filter, it will take the longest.

5- Increase Pool Circulation

Scrapers on the pool surface cannot reach the debris and turbid waters at the bottom of the pool. You can increase the pool’s circulation to help the water in all pools pass through the filter.

  • Install the return jet. Point the return jets in the same direction at an angle of 45°. This helps stir up cloudy water that can enter the main skimmer’s filter system from the bottom of the pool.
  • Use the bottom drain. If you have an in-ground pool, ensure the main drain at the bottom is open and draws water from the bottom of the pool to the filter system. This speeds up filtration and cleans the pool water faster.
  • Turn the vacuum cleaner upside down. If you have an in-ground pool without the main drain, you can hook up a manual vacuum cleaner and turn it upside down from the bottom of the pool to mimic the main drain underneath.

6- Added Pool Water Purifier

Add a clarifier when the pool water circulates, and the effect wears off. The clarifier helps to combine the small particles into large particles that the filter can capture. 

What can I do to prevent cloudy pool water?

Regular maintenance is the best way to prevent cloudy pool water. This includes cleaning the pool frequently and ensuring you have the chlorine right and your TA levels correct. This helps make the water more stable to pH fluctuations.

The use of quality products in the pool is also essential in preventing turbid water. For example, discount brands often have low chlorine levels, meaning you need to use twice as much to reach your desired level.

If you don’t know the chemical imbalance of the pool or the type of product you need to use for a clean and sparkling pool, it will be more costly than if you would do it with the help of a professional maintenance team. Not only does it save you time, but it also means you and your family can swim more often in a healthy pool.

What chemicals do you need to treat a cloudy pool?

Want to know how to purify the water in your cloudy pool? Well, you’re in the right place. But first, let’s break down the chemicals needed to treat cloudy pool water. 

First, you need chlorine. Currently, there are several types of chlorine. So talk to a pool expert like your local Poolwerx. They will help you find the best chlorine for your pool, such as its surface and equipment.

Second, pH control is necessary, whether liquid acid or dry acid. It would help if you also had an algaecide to eliminate algae. Finally, you’ll need a cleaner, whether it’s CrystalClear, 4-in-1, or Maxi tab. This help maintains the transparency of the pool water. These pool chemicals will obviously require you to wear personal protective equipment. We are talking about gloves, safety glasses, and, of course, protective clothing.

Is it safe to swim in a cloudy pool? 

The simple answer is NO. Cloudy pools are not safe. No one can swim until the cloudy pool is cleared. But in most cases, it is. Muddy water can indicate an imbalance in the chemicals in the pool. This can cause swimmers red eyes, skin irritation, and rashes. If environmental factors are causing cloudy water, it can usually be removed with a clarifier and regular cleaning. However, if environmental factors are excluded, and the water chemistry is balanced, the problem may be in the filtration system. In this case, worn or damaged components of the system must be replaced.

Final Verdict

No one cares if it looks muddy, whether it’s a commercial or private pool. If it is a commercial pool, don’t worry and keep it safe and clean; the pool’s income will gradually decrease.

The six steps above are How To Fix Your Cloudy Pool and should be done regularly to prolong the life of your pool.

Always test the pool! Always act on your test results!

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