I am afraid I'll like it so much I'll next want to build an in-ground one. What I really want is a REAL pond, but my only source of water on the property...other than my well...is a small spring that doesn't run all year and is on the far side, and it would be too expensive to dig a pond and pump the water up to it.
Update: Now that it appears old man winter has died a noble death, I am ready to start working on the pond...
I found some neat concrete garden border blocks today at Home Depot and bought enough for the pond border outline. They are 11.5 long x 3.5 wide x 5.5 high and have a ball-and-socket design, so I can easily create a hexagon shaped border...which is the shape of my pond.. Since the slope of the area where I want to put the pond is only 2.5", I decided to use these instead of retaining wall blocks.
I also got the perimeter outlined and began removing the sod...which I'll use for fill on another project. Then, I'll dig deeper, fill with stone dust, level, set the blocks, fill the middle, and begin constructing the pond. Pictures to follow....
I got about 1/3 of this area dug down to 6" on Wednesday, but after yesterday's rain, it is filled with water. Hopefully, it will all seep into the ground today. Starting Saturday, we are expecting a stretch of nice days, so my plan is to finish the digging and get the stone dust in and complete the base.