What causes cloudy pool water

One of the most common questions we get is why the water in a swimming pool gets cloudy. Is it a problem? Should you be worried? What can you do to fix it? Today, we’re going to try to address some of the most common issues and what you can do to prevent it from happening in the first place. 

Let’s jump right in!

Poor filtration

This one likely isn’t a surprise to anyone reading this blog. When a filter becomes compromised, your pool’s water will not only become cloudy – it can become dirty, too. In fact 90% of cloudy pools usually are traced back to poor filtration. If you notice cloudy water – we definitely recommend that you check your filters first.

Chemical imbalances

  • Whether it’s improper chlorine levels, unstable PH, alkalinity or calcium hardness – there’s a whole swath of chemical reasons that can contribute to cloudy water. Generally speaking, here are some guidelines for chemical levels that’ll keep your water clear.
  • Chlorine level should always read below 0.5ppm or under 0ppm
    Total alkalinity should be kept under 200 ppm
  • Optimum Calcium Hardness range is roughly 100-400ppm. Usually, it just depends on temperature. 

Stick to those guidelines and what your service pros tell you, and you should avoid cloudy water.

Excess particles from swimmers and environmental debris

Sometimes the biggest culprit in causing cloudy water comes from outside the pool. Swimmers might bring in excess sunscreens and oils, make-up or bodily fluid – and that can contribute greatly to the overall look and condition of the water. Rainwater is another major contributor largely because it can cause nitrates, phosphates and other chemicals to run-off into your pool. Especially when rain is heavy, it can dilute your chlorine levels and make them less effective. 

And lastly – leaves, twigs, flowers and pollen can build up too – and worse yet – exacerbate many of the issues we’ve already discussed. Make sure after every use, you do a quick skimming of the pool and use your cover as much as possible. 

If you’re looking for more assistance on how you can keep your pool water clear in the Tampa area, give us a call today and we’ll be happy to help. Until then – good luck!

Share Button