How to clear up cloudy pool water

A cloudy pool is not a pretty sight. But more importantly, the contents of cloudy water can form a potential threat to the health of the swimmer. That's why pool owners often seek for products to add to the water to eliminate the problem. What they often don't realize, is that these chemicals can affect bathers health and the materials in and around pools, spas and hot tubs... Cloudy pool water can occur for various reasons. To secure the pleasure as well as the health of the swimmer, this cloudy water must be cleaned up. Here's what you can tell your customer - whether that is a pool owner, a manufacturer or installer - when he knocks on your door for the latest products to clear up cloudy pool water.

The filter and/or pump are not doing their job

A filter that is malfunctioning will never keep the water clear. Always make sure the filter and pump are functioning properly. Clean them regularly (remove leaves and other debris) and make sure the timer on your pump is set right. If a sand filter is used, make sure it is backwashed regularly so that not only the filter is cleaned but also through suppletion water the values (i.e. alkalinity) in the pool will be kept up to the mark.

Check if the filter or pump need replacement. Avoid stagnant water as much as possible.

Nature vs human

Debris coming from trees like leaves and pollen, dust, dirt, et cetera create cloudy pool water. But also lotion, oil, make-up, shampoo and other substances carried by humans wash into the water when swimmers intensively use the pool. Of course, make sure your filter can handle the amount of people that use the pool. Substances that end up in the pool (of natural origin or carried by humans) cause the forming of chloramines, a reaction of chlorine.


Unbalanced water

Improper use of pool chemicals can cause several water values being negatively affected.

Algae: a slippery problem

Algae (both dead and alive) can cause cloudy water. In addition, heating up the pool to create a pleasant swimming temperature can accelerate the forming of micro-organisms. To determine if algae might be the problem, simply touch the sides of the pool. A pool that contains algae will feel slippery.

So, how to clear up cloudy water properly?

We've read that a decent filter and pump can reduce the risk of cloudy pool water significantly. If the water is still not clear, there must be other culprits that cause cloudy pool water.

To clean up cloudy pool water, many pool users simply put extra chemicals such as chlorine in the pool. This is a common misconception; by adding chlorine, more chloramines are formed. Chloramines are the root for health problems like red eyes, skin irritations and breathing difficulties. Using chemicals to fight cloudy pool water is often not a very environmentally friendly choice, not to speak of the risk of overdosing.

The solution? Tackle the root of pool evil...

One green, non-hazardous solution against cloudy pool water are UV purification systems. Ultra-violet light is extremely effective at eliminating micro-organisms.

There are two very important culprits of cloudy and unhealthy water that can be eliminated by UV pool sanitizers: micro-organisms (such as algae) and chloramines. UV-C lamps destroy all the micro-organisms and helps to break down chloramines. Positive side-effect: the unpleasant “chlorine smell”, skin and eye irritations that are caused by chloramines also belong to the past!

These two benefits combined make sure that UV purification systems help users tackle the root of cloudy and unhealthy pool water. Combine this with an excellent filter and pump and you will have beautiful, crystal clear water as a result.

 The role of chlorine in a world of UV

Topics: UV-C systems

Posted by Gies Leenders on 10 August 2016
Gies Leenders
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