Sorry if I am posting this in the wrong place, but our pool construction was just completed this past February, including new concrete around the pool. The pool itself is beautiful and we are happy with it. However, we were initially very disappointed with the concrete because we had requested the concrete color San Diego Buff, which is a pinkish color, but the color ended up being completely gray. The contractor said it ended up with no color because we requested the sanded finish, which hides the color. They said it was our fault for not doing enough research on concrete to know this would happen. We eventually got over that, but then we noticed the concrete had a lot of dark spots on it. The contractor said he couldn't notice them at all and that the concrete looked fine. Well, just in the past few weeks the concrete has started getting white spots all over it. It started out in one area, and then expanded to almost everywhere. Can anyone give me an idea of how this happen? I will try to attach pictures.