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Contact Lens manufacturer makes clear decision on limescale prevention

25 June 2009

ENiGMA Scalewatcher electronic limescale prevention units from Environmental Treatment Concepts scale down fouling and downtime in autoclaves.

Coopervision (UK), is based in Fareham, Hampshire, an area noted for its hard water. A contact lens pioneer for decades, CooperVision has become the second largest contact lens maker in the world and the number one manufacturer of toric lenses.

Since 2001, ETC units had been fitted to the humidifiers in the company building, with great success. In 2007 a different scaling issue presented itself in the four autoclaves, which produced steam, resulting in extra maintenance as the autoclaves needed to be stripped down and cleaned every four to six weeks. As the company operates continuous manufacturing, producing thousands of contact lenses daily, this naturally affected productivity levels.

In early December 2007 Mark Potter of Coopervision was referred to ETC. After consultation, and with knowledge of the success of the humidifier treatment, Scalewatcher ENiGMA units were fitted to the autoclaves. By January 2008 a significant change had been noticed and by February it was confirmed that the loss of productivity was greatly reduced and less maintenance was required.

A 750 ml water sample was taken from the steam generator prior to the fitting of the Scalewatcher ENiGMA unit and then again six weeks later. A vast improvement was clearly seen in the reduction of scale in the beakers after evaporating the sample.

Mark Potter was “ amazed and pleased” at the efficacy and efficiency of the treatment and the ensuing increased productivity.


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