What&#x27;s wrong with your tap water?  Don&#x27;t they have the same safety standards to meet?<p>UK tap water is great (Well, outside of Greater London where it&#x27;s basically limestone slurry).  I&#x27;ve never bought bottled or filtered aside from the brief time I was in London.<p>At least two brands of UK bottled water were bottling northern tap water and selling it.  Business idea I wish I had thought of!