I rebuilt my pond this past winter. The first time I built it, I tried making it out of concrete. If I would have known, I would have just used a liner from the beginning. Oh well. So I had to break through all that cement to build the new one. That was a pain in the rear. Now, it is wider with shelves and deeper. Did it in record time. I hired help, but I had to fire him for dancing and goofing on the job. Finally, I have lilies blooming and things are looking good (except for the water clarity). Here's what it looks like now. Before and after.