We renovated this koi pond for a customer about 3 years ago and I thought you guys might enjoy seeing the build. I will keep the words to a minimum and mostly let the pictures speak for themselves. I will answer any questions you have. For some of you this will be a completely new concept. Finished product is a 2 pond system in which you can see the floor of the pond yearround with no cleaning necessary.(just filters that is) When we arrived the water was muddy brown and rocks were everywhere! These pics show what it looked like after we drained the pond and scooped out 6" of who knows what. Basically there is a large pond with a bog above it. That is all going to change. I owe a lot to Koiphen.com and its members for helping me learn about koi ponds.