I am just about to tile a new shower area, but our choice of tiles is being restricted as we are only looking at larger tiles in order to minimise the amount of grouting, since in our previous bathroom the grouting in the shower area went very dirty looking (grey/brown).
Is there any way you can 'seal' the grout to prevent this? We are looking at using Travertine tiles and understand that these need to be sealed?
thank you for any advice.