"Christian McArdle" wrote
| It is almost certainly perfectly acceptable. There is a rule of
| thumb of 30cm from the taps, but this is not set in stone.

However, this is a motorway services loo where there is, presumably, a high
risk of vandalism over and above the usual risks associated with a place
open to the public. I would be more concerned about that than wet hands. Use
of a plastic accessory at an accessible height might not be considered good
practice in such a location.

Owain