Jonna - I really love the tile, too! It looks so nice.
I was wondering what they were doing to the concrete pond. That's very interesting how they do the wiring. I am with you, it would seem more sensible to just install the wiring within pvc pipes (or something) and then pour the concrete. But who are we to question? So far, they have done a great job. Are you going to tile the outside of the pond or paint it or what?