If your new shower was not built from scratch using a mortar bed the chances of flex in those areas you mentioned does increase. This is not abnormal. If done right installing caulk in those areas instead of grout will solve the problem, but not permanently. New caulking must replace the old every year or so depending on how often your shower is being used. To keep your shower looking like-new requires keeping water away. So another tip would be to towel-dry the bulk of the standing water where the wall meets the pan or tub. The walls also if you have if there is water build-up from steam moisture.Any questions? email me anytime. markdw@pacbell.net : : I had a new shower put in in January. The grout is pulling away from the edges where the walls join and where walls join the floor and shower. The builder says it is settlement. It hadnt happened for 19 years in my old shower, he says that one must have been mudded in He wants to put caulking on instead of grout to fix it. Is that ok?
