This is an old town hospital built in the mid-1800s. It now has 156 beds and serves as a Community and Mental Health Hospital. The water services on site are a mix of new and very old so, as the recommended temperatures could not be maintained throughout the site, he use of temperature as the only control mechanism for Legionella was ineffective.
The Tarn-Pure system helps ensure the correct treatment levels are maintained at periods of low water usage (i.e. when fresh treated water from the cold tank is not drawn). Legionella and TVC counts are now under control and the hot water can be reduced as Thermostatic Mixer Valves are removed.