Troon Water Hardness & Quality Report (2026)

Scottish Water supplies Troon, the famous golf resort town on the Firth of Clyde coast in South Ayrshire, from Loch Bradan in the Galloway Hills and associated South Ayrshire upland reservoir catchments, treated at Loch Bradan Water Treatment Works before distribution across the Ayrshire coast. At 58 mg/L (4.1°Clark) and a TDS of 121.1 mg/L, Troon's water is very soft, consistent with the upland Galloway and South Ayrshire reservoir supply character that produces one of Scotland's most consistently soft water supplies.

Loch Bradan is impounded on the Water of Girvan in the Galloway Hills of South Ayrshire — an ancient landscape of Ordovician and Silurian greywacke and metamorphic rock, some of the most calcium-resistant geology in Scotland. The surrounding upland plateau is acid moorland and blanket bog with virtually no soluble calcium minerals, producing naturally very soft water with low TDS. This Galloway upland supply, distributed to the Ayrshire coast and towns including Troon, Prestwick, and Ayr, is characteristic of West of Scotland reservoir supplies from the ancient hard-rock Southern Uplands.

At 58 mg/L, Troon's soft water creates minimal limescale problems. Descaling the kettle every three to four months is all that is typically needed. The combi-boiler benefits from a standard scale inhibitor as a precaution. Washing-up liquid lathers well with small amounts of product. Taps and shower heads remain clean with minimal maintenance. As with all very soft Scottish West Coast supplies, residents in older properties with lead or copper pipework are advised to briefly run the cold tap before drinking, as soft water is mildly corrosive to metal pipes — Scottish Water's standard precautionary advice for soft water supply zones throughout Ayrshire.