UV vs. Ozone, a more simple, cost effective and robust option

The Granta School in Cambridge, UK has chosen to replace their existing Ozone system with a state-of-the-art atg UV Technology Ultraviolet water treatment system for its on campus special needs hydrotherapy rehabilitation facility as a solution for improving water quality and enhancing disinfection.  

Granta school operators took the decision to replace their Ozone system with UV technology due to the high capital running costs, several operational issues and required level of technical expertise associated with its complex operation.  In comparison UV treatment is a simple, fully automatic process that cannot be overdosed, is lower in capital costs and performs the same oxidation & disinfection tasks at a fraction of ozone's running costs.  Additionally the maintenance cost of UV equipment is much lower than with an Ozone system, and does not increase significantly with age.

The Granta School project was managed & installed by H20 Servicing Ltd (www.h2oservicing.co.uk), specialists in swimming pool design, refurbishment, service and maintenance.  H20 Servicing purchased and installed a state-of-the-art atg UV Inline ECL dual lamp system, which had been designed and manufactured in Wigan, Greater Manchester to client specifications such as bather load and pool size.

The atg UV system features an automatic wiper to prevent the build-up of deposits on the quartz tube, protective strainer baskets, half to full power for increased efficiency during periods of low usage and UV monitoring to ensure the systems consistently run at an optimum level.  

Site Manager Joanna Clarke comments "The UV system has had a tremendous impact on our water quality.   We have had many issues relating to the complexity of our previous ozone system, including some safety concerns.   What's most impressive is how easy UV systems are to operate and their low running and maintenance costs".  

Ultraviolet treatment is an ideal solution for improving swimming pool water and air quality.  Using high output UVC lamp technology, atg UV's Ultraviolet treatment systems break down problem chloramines, resulting in a more pleasant and inviting leisure environment for customers, reducing ‘Red Eye', skin irritations and chlorine smells.

The elimination of chloramines also produces crystal clear, sparkling water and vastly reduces the need for taxing shock treatments and backwashes.  Unlike traditional chemical treatments, the effectiveness of UV disinfection is not limited to a select number of micro-organisms, and will safeguard against all known bacteria, viruses and pathogens, including the seventeen Chlorine resistant organisms that threaten pool user safety such as Cryptosporidium and Giardia.