Health Warning Dryden Aqua can provide a basic crushed glass economy glass media, similar products are available from Australia, USA and European countries including the UK  however ethically and from a pubic health perspective we would not supply for swimming pool applications, we consider the products unsuitable for the application. While these products will work, there are potentially very serious health and safety issues as well as performance problems. AFM is a highly processed glass filtration media developed from 1.2m Euro R&D project in association with the European Commission.  We are trying to make swimming pools a safe place for the public and staff and are concerned by other companies trying to follow our path and not understanding the issues.  When it comes to performance and safety, there can be no compromise, if it is not AFM then it is not safe.  We adopt the same policy with all of our products, we do not manufacture low cost products, we provide cost effective products that are in compliance with the highest standards.

Key Points about AFM

1. AFM prevents Lung damage.  If your eyes sting when swimming, the chemical by-products in the water and just above the surface will also be damaging your lungs. Chlorine is the best disinfect to use in a swimming pools and the only product compliant with German DIN standards, but it forms by-products which are toxic, cause lung damage and can lead to asthma in children. AFM filter media prevents the formation of toxic chemicals, making chlorine safe to use

2. With AFM and NoPhos is possible run a busy public pool at 0.5mg/l free chlorine and less than 0.2mg/l combined, we have even consistently achieved combined chlorine levels below 0.02mg/l in 25m pools with over 1000 bathers per day.

3. AFM is self sterilizing and does not incubate human pathogenic organisms such as Legionella and MRSA

4. AFM is a much more effective a barrier than sand to Cryptosporidium oocysts, AFM therefore prevent gastroenteritis and other serious intestine diseases related issues.

5. AFM saves money on chemicals and power, and gives you much cleaner, brighter and safe water in which to swim

   If you use AFM in a DIN standard filtration system at appropriate water flow rates (with NoPhos and coagulation with APF)  you will be able to operate a public swimming pool with a free chlorine level of 0.5mg/l, with a combined chlorine level  consistently less than 0.2mg/l, turbidity levels less than 0.01 NTU and there will be virtually no trichloramines or trihalomethane. The chlorine and chemical demand will drop by up to 90%, water demand will drop by 75%.

   Dryden Aqua Environmental & Public Health Policy  "Chlorine is the best disinfectant that we have for swimming pools, however any process, technology or operational procedure that increases chlorine demand should not be permitted because the concentration of  toxic chlorine reaction products in the water and air just above the surface of the water, is linked to chlorine consumption". At Dryden Aqua we endeavour to provide systems and develop technology that improves our environment and minimises the use of chemicals
   Edinburgh Leisure's, policy is to use AFM in all their Swimming Pools.  Edinburgh Leisure is a leading leisure trust with a turnover of £18 million, 630 employees and over 3.3 million customers a year. To help these customers stay active they manage swimming pool  leisure facilities for the City of Edinburgh Council . The atmospheric conditions will dramatically improve, you will not only be protecting the public but the fabric of the building and the air handling systems.  AFM is a proprietary product of Dryden Aqua however we also have a duty of care to the public and it is essential that all of the facts are made public.