What Causes Cloudy Pool Water and Why?

Cloudy pool water can have many different causes and impact the usage of your swimming pool. In the video below, our Poolwerx Expert explains why your pool is cloudy and helps you learn how a little bit of pool maintenance and cleaning will have your cloudy pool clear in no time!

How to Fix Cloudy Pool Water: A Step-by-Step Guide

Cloudy pool water can be a sign of potential health risks and underlying maintenance issues. If you’re dealing with cloudy or milky pool water, it’s essential to understand the causes and take quick action to restore your pool’s clarity. Here’s a guide to help you address and prevent cloudy water, with clear steps to follow.

Step 1: Recognise the Stages of Cloudy Water

Not all cloudy pool water looks the same. It’s important to understand the stages your pool might go through:

Dull Water In this early stage, your pool may lose its sparkle. It’s hardly noticeable, but it’s the start of the problem.
Hazy Water – You can still see the bottom, but details are blurred.
Cloudy Water – The bottom of the pool is visible in the shallow end, but not in the deep end.
Milky Water – The water appears milky, and the bottom of the deep end is invisible.
Opaque Water – The most extreme stage, where you can’t see the bottom at all.
Understanding where your pool water stands will help you choose the right actions to take.

Step 2: Identify the Causes of Cloudy Pool Water

Several factors can lead to cloudy water. Here are the most common ones:

1. Water Chemistry Imbalances

  • Incorrect chlorine levels

  • Improper pH balance

  • High calcium hardness

  • Excessive metal content

Any of these chemical imbalances can cause your pool water to become cloudy. Regularly testing your water is essential to maintain the right chemical levels.

2. Equipment Failure or Inefficiency

If your equipment is failing or inefficient, it can significantly contribute to cloudy pool water. Look out for:

  • Salt Chlorinator Issues: A worn or broken salt chlorinator may produce less or no chlorine, leading to cloudy water.

  • Pump Wear: Parts like injection tubes in chlorine or pH pumps can wear out, reducing efficiency. Regularly inspect and replace these parts when necessary.

  • Filtration problems, whether due to broken parts or general inefficiency, can also prevent your pool from staying clean.

Step 3: Test Your Pool Water Regularly

Routine water testing is the key to avoiding cloudy water. It helps you stay on top of any chemical imbalances and allows you to correct them before they turn into bigger issues. We recommend:

  • Testing your pool water at least once a week, especially during the warmer months.

  • Visiting your nearest Poolwerx location for free pool water testing. This will give you a detailed insight into the health of your pool water.

Step 4: Maintain Your Pool Equipment

Preventative maintenance is crucial for avoiding equipment-related issues that can lead to cloudy water. Here are a few tips:

  • Inspect your filtration system regularly. Ensure there are no worn or broken parts that could hinder its performance.

  • Check your pumps and salt chlorinator for wear. Replace any faulty or worn components as needed to keep your pool system running smoothly.

Step 5: Take Immediate Action if Your Pool Turns Cloudy

If your pool water has already gone cloudy, it’s essential to act quickly. Here’s what you can do:

  • Test your water immediately. Identify any chemical imbalances that need to be corrected.

  • Fix equipment issues promptly. Worn or broken parts should be repaired or replaced as soon as possible to avoid further water clarity issues.By following these steps, you can maintain clear and healthy pool water, ensuring your pool remains inviting and safe. Remember, regular testing and maintenance go a long way in preventing cloudy water.

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More on the Blog:

How To Fix a Cloudy Pool After Rain 
How to Fix Cloudy Pool Water

By Poolwerx Australia, 14 September 2020
About Poolwerx
Poolwerx, founded in 1992, is Australasia’s largest pool and spa maintenance network. With over 500 territories made up of retail stores and mobile vans, Poolwerx clients have some of the best people and latest technology available anywhere they live or work to take care of their backyard or commercial pool. Poolwerx is for healthy pool people.

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