Hi, thanks for replies. I guess I was thinking more along the lines of cross infection via the sand - is this likely to be a problem???
We are setting up a sensory hut in garden (i.e. with a variety of plants with different textures, colours and fragrances, also garden theme art works + more (is in progress) and I'm thinking that of a sand tray to run fingers through or one to place feet in could be a pleasant experience for some residents, but another staff member felt it would be a problem due to cross infection.