Sustainable pool filtration with reduced chemical consumption

Many conventional pool filtration systems use large amounts of chemicals to perform effectively. Yet too many chemicals are not good for human health nor the environment. But the massive chemical consumption is not even necessary because modern pool filtration systems can deliver cleaner water with significantly reduced chemical consumption. Let us dive into the details of sustainable pool filtration systems with reduced chemical consumption.

Many conventional pool filtration systems, e.g., sand filters, have a large pore structure, making them unable to retain particles smaller than 10-20 microns. This is unsound for pool filtration as the filter cannot retain bacteria, which is approximately 2-3 microns. These technologies heavily rely on chemical treatment to offer effective cleaning of swimming pool water. Chemicals cannot be avoided in pool filtration. Chemicals are essential to obtain clean and clear water, which is safe for humans. A pool will quickly turn into a health concern filled with bacteria, viruses, and harmful parasites and particles if no chemicals are used. All swimming pools require a low level of chemicals to be safe to jump into. Thus, it is not realistic, safe, or desirable to have a completely chemical-free pool. Yet, it is realistic, safe, and desirable to use as low concentrations of chemicals as possible to provide a healthy environment. Chemicals should be used intelligently as well as in moderation.

Reduced Chemical Consumption

Chlorine is the most utilized chemical due to its effectiveness and low price, making it a cost-effective solution. Still, there are other alternatives to chlorine, such as bromine and biguanide. However, they are more expensive, which is why chlorine is the most preferred worldwide. It has been heavily applied in the swimming pool industry for a long time, and the chemical would not be so widespread if it were not a safe solution. Still, it is all about concentration because chlorine can irritate eyes and skin, cause respiratory diseases like asthma, and lead to an unpleasant smell if imbalanced.

Moreover, too much chlorine can change the pH of the pool water, which will make it more alkaline. The pool's pH should be between 6.8-7.4, preferably between 7.0-7.3. Additionally, chlorine is most effective within the latter range. Insofar the pool water is too alkaline, or the pH is above 8, the chlorine effectiveness is reduced to less than 20 %.

While it is necessary to use chlorine to obtain clean and clear water, chlorine consumption can be reduced significantly without compromising pool water safety and quality.

Contrary to sand filters, ceramic filters filter down to 3 microns. This delivers a much more thorough filtration process as the membrane makes up an effective barrier against even the smallest particles and bacteria. Thus, ceramic membranes do not need the same chemical treatment. Consequently, with ceramic membranes, it is possible to:

  • Reduce chemical consumption by 30 %
  • Reduce residual turbidity by 40 %
  • Reduce combined chlorine by 40 %
  • Reduce trihalomethanes by 40 %

Based on more than 20 years of experience in the filtration industry, we have developed an innovative and durable swimming pool filtration system based on patented membrane technology, delivering all the above desirable reductions. The solution guarantees safe, clean, and clear water. And not only is reducing chemicals excellent for human health and the environment, but it also delivers reduced OPEX. Thus, it is a solution ensuring sustainable and financial growth.

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