The chlorine-saving substitute for pool filter sand

15 October 2020
A direct substitute for ordinary pool-filter sand or outdated glass filter media that is far more cost-effective for pool maintenance is available from Pratley. Clinobrite is an all-natural Zeolite filter medium that can remove 40% to 50% more physical dirt.
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Unlike ordinary filter sand, Clinobrite grains have a rough surface to attract and entrap extremely fine dirt particles and algae onto their surface, and not just between the grains like ordinary sand or glass. An added benefit is that Clinobrite is even able to entrap minuscule diarrhoea-causing cryptosporidium cysts, a major health problem in global municipal water supply.

Clinobrite also scavenges unwanted ammonia from swimming pool water, which subsequently reduces the pool’s chlorine demand. This translates into a direct cost-saving,” explains Pratley Marketing Director Eldon Kruger.

Ammonia and nitrates in pool water react rapidly with pool chlorine to form highly undesirable and odour-causing Chloramines. Known as monochloramine and dichloramine, these can result in lung issues, itching skin and red, burning eyes.

By removing the ammonia from the water, these harmful chloramines are effectively eliminated, and the chlorine is more effective and free to do its intended job of sanitising your pool water. “Also, because Clinobrite is lighter than ordinary sand, it lifts better during backwash cycles, which means that backwashes are much shorter in duration, thereby also saving precious water and saving even more cost,” adds Eldon.

Unsaturated Clinobrite never stops working. It absorbs ammonia from your pool water on a 24 hour basis. Consequently over time the Clinobrite will become saturated with ammonia and needs to be regenerated using a very simple salt solution procedure. It is recommended that you regenerate every six months to a year in order keep Clinobrite's ammonia removal capability optimal.

For normal swimming pool use, Clinobrite only needs to be replaced every three years or more. The average-sized pool filter tank uses the same quantity of Clinobrite as it would ordinary bags of sand, translating into 2 x 25 kg bags of Clinobrite (if using a two-bag filter tank). Finally, you can save yet more costs by recycling your old Ammonia-saturated Clinobrite and using it as a slow release fertiliser on your lawn!


Notes to the editor

To download hi-res images for this release, please visit and click on the Pratley Group link to view the company’s press office.

About the Pratley Group
Established in 1948 by George ‘Monty’ Pratley, the various companies in the Pratley stable rest on a foundation of research and innovation in both the manufacturing and mining sectors. The various Pratley companies, drawing from 70 years of experience, have filed over 350 patents worldwide, and are ISO 9001 certified. Operating divisions are Pratley Adhesives, Pratley Electrical, Pratley Analytical, Pratley Perlite & Zeolite Mining, Pratley Craft & Decoupage and Select Hairdressing Supplies.

Pratley Contact


Phone: (011) 955 2190

Fax: (011) 955 3918

Email: sales [at] pratley [dot] co [dot] za


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