Unstable States: John Ruskin and the Truth of Water is a temporary exhibition at the Whitworth Art Gallery, Manchester, UK. The exhibition looks at depictions of water in liquid, solid and gaseous states. This blog was created as part of a Masters project looking at the use of QR codes in heritage settings. The blog posts allow the public to comment on the works and themes of the exhibition via QR codes printed on the labels in the gallery, or to continue the conversation online after their visit. Public comments will be used for statistical analysis, but might also be cited as examples in my dissertation if they relate to QR codes. Any comments used will be anonymised.