I can quite understand why people feel awkward asking for tap water without making a purchase (British embarrassment over asking for tap water in bars fuels plastic bottle waste – survey, 11 May). Fortunately, the Refill app from refill.org.uk will help direct people to all sorts of lovely businesses who have made clear their commitment to plastic waste reduction. They will refill with no obligation to buy anything. If there are any businesses who would like to join, they can do so within the app, and together we can provide a robust alternative to plastic drinking bottles.
Guy Hodgson
Bath
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