Water Gardening: Above Ground/Walled in ponds, 1 by jlp222

jlp222 wrote:
I think I have a plan. I am going to do a small frog pond, 50 gallons. There liner is (total) about 24" deep, with a ledge about 16" down which runs around the edge. It will probably be filled about 18-20" deep.

I found some large stepping stones, that when stacked 4 tall, support the pond under the ledge perfectly. The bottom of the pond will sit ground level(ish).

I will then put a retaining wall around the whole thing. I figure 50 gallons of water weighs 500 ponds, and that should be able to be kept in place by the retianing wall and sand around the bottom. Plus, I am not going to fill it to the max, so it will probably only be about 400 pounds.

Does this sound feasible? This is a picture of the liner which is about $25.00 at Lowes (on sale yay!).