Grouting River Rocks on a Shower Floor

This is a short video on how I grout river rocks on a shower floor. I didn't add it into the video, after you are done grouting I go over the corners with a flex caulk that matches the grout color. Usually the manufacturer has a caulk that matches the grout. You want to do this in all corners so when the grout cracks, which it almost always will the layer of caulk will prevent water from penetrating and also make it look great for a long time.