Background
Glenlossie Distillery is situated in the north of Scotland, not far from Elgin, nestling under the cover of a fir clad hill. Its location enables the waters running from the Mannoch Hills to collect in a reservoir just south of the distillery.
To save expensive mains water charges for 30,000 litres per hour, the reservoir was identified as a source for cooling water. A cooling tower was installed but became heavily fouled. This led to increased costs of biocides along with a drop in the cooling tower performance that potentially threatened the site with a return to mains water.