Refill is a British environmental campaign that connects people to places they can eat, drink and shop with less plastic.[1] Using a location based app, Refill provides a network of points offering the public free tap water in the UK.[2] The network comprises high street retailers, cafes, restaurants, other businesses, museums, and local authorities.[2][3] The campaign aims to prevent waste created by single-use plastic water bottles, as well as increasing the availability of quality drinking water.[4]