I must say that I also agree with RAH. The water drops to that level all the time. It might be a result that the water pressure, caused by the weight of the water, is diminished at that level and can't push thru a vein that might be 5' down, 10', 15' or wherever deep.
I would still be leery about the plastic being separate pieces. With the weight of water and pressure, it sure seems like it would find any possible leak, no matter how small or thin. It don't take much, but you also have to weigh what leaks to what water is coming into the pond.
It is often mentioned that its better to build a pond the right way the first time, because it is very difficult to re-do one. Then, to have to re-do it many times is really discouraging, etc. I would think at this point, do it right and consider lining the whole pond with clay, and compacting it, with a sheepsfoot roller. Just lining spots with clay may not work either, because if it isn't brought to solid clay it just will seep underneath it back to a sand vein.
Last edited by fish n chips; 09/29/13 07:35 AM.
