No one likes the idea of swimming in a pool that resembles a giant bowl of milk. Not only is cloudy pool water uninviting, it also could be damaging your pool and circulation system without you even realizing it.

In order to avoid potential damage or illness from bacteria, you will need to figure out the cause of a cloudy pool before you are able to fix it. This is because the solutions will vary depending on how the water has become cloudy to begin with.

In today’s post, we will be going over some of the common causes of cloudy, milky-looking pool water so that you have a better idea as to how to tackle the problem.

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Common Cause #1: Low Sanitizer

Chlorine serves an important role in maintaining the cleanliness, clarity, and overall health of your pool. A lack of this helpful sanitizer can be dangerous and present risks, including bacteria growth and increased stress on your pool filter. When these sanitizer levels are low, bacteria is also able to survive for longer periods of time within your pool and expose swimmers to dangerous contaminants such as E. coli.

Common Cause #2: Poor Water Chemistry

You will face a whole variety of problems if the chemistry of your pool water is out of whack. If your pool has high pH, your water will be less acidic than it should be. This soft pool water will likely form scale on surfaces in your pool area and inside of your plumbing system, making it much more difficult for sanitizers to work. This ultimately can cause pool cloudiness, filtration problems, and dangerous bacteria growth.

If your pool has high alkalinity, scale will also form, plus it will not help with stabilizing your pH the way that it should. When there is both high pH and alkalinity, it can lead to pinning in metals and wear and tear on the vinyl of your pool.

High levels of chlorine can cause skin and lung irritation — especially if you have asthma or difficulty breathing. You can also end up with a lot of chloramines (the byproduct of chlorine sanitizing) which can be irritating and corrosive to your pool, ultimately causing cloudy water.

Common Cause #3: Filtration Problems

If you are experiencing a clogged filter, dying pool pump, or are simply not running your filtration system for at least eight hours a day, you will likely end up with cloudy pool water. If all of your pool water isn’t being run through a clean and fully functioning filter, it can retain debris and leave you with dirty and cloudy pool water.

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Common Cause #4: Algae

While the types of algae that bloom in your pool are not particularly hazardous to your health like algae found in the wild can be, the cloudiness it causes in your pool water can create dangerous swimming conditions, especially to small children and pets.

Until you have all of the algae cleaned out of your pool water, it is best to not allow anyone to swim in it. Also, be sure that children and animals cannot find their way into the pool area, which is something to keep in mind even when the water isn’t cloudy. As always, if you are looking for more information on pool maintenance tips or would like to get an accurate read of your pool’s current flow rate, give Blue-White Pool and Spa a call and check out our FLOWREAD™ pool efficiency flowmeter today!

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