Some thing I have thought of doing for years. The Hot and Cold decals wear off on even costly taps in time. A White Stick operator would have no idea of the correct tap for hot using the usual engraved versions, unless there really is a convention for Left and Right.
My plumbing follows the physical convenience of the pipe run. I have just refurbished some basin taps (new insides).
A Morse Code H for Hot is easy, paint filled indents can be felt in the dark. Cold presents a problem a C in Morse Code is too complex. So I used an I. Cold Ice get it? I reckon there might be a connection in Ancient Latin there somewhere.
I could have made the I blue and the H red for kids and others, but NO, learn a bit of Morse or get the wrong product. There is a logical value code in there too to my mind, Hot is >than Cold.
Well it might also make a talking point for visitors.
