Who recommends a separate tap to provide un-softened water for drinking?

The recommendation is made in the Water Supply (Water Fittings) Regulations 1999 and is endorsed by the Government(2), Regulators(3), the water suppliers through WRAS4 and the water-softener supply industry through the UKWTA, it’s trade association.

2 Department of Environment, Food and Rural Affairs; Water services Unit, The Scottish Executive; Northern Ireland, Department of the Environment

3 Drinking Water Inspectorate; Water services Unit, The Scottish Executive; Northern Ireland, Department of the Environment

4 Water Regulations Advisory Service