One thing for everyone to consider when doing any of the Pebble stuff...make sure you take the time before you fill the pool to run your own hands over as much of the surface as possible. I've found some pretty rough edges (even divots) here and there AFTER the fact, so I've been using a file to smooth them out. Some spots can be quite sharp, too. My mother-in-law scraped her leg in our hot tub due to the tiniest stone with a sharp edge. That was fun.