must one have a backsplash on the sink?
I am using a chest as a vanity in a powder room. It has a marble top with an undermount sink. It is old marble however and I do not have a backsplash. Is it a big no-no to just have painted dry wall behind a vanity? Has this caused problems for anyone?
Alternatively I could mirror the wall behind it but I am worried about the chest bumping into the mirror.