The land lord for the land I am using tried to put a duck pond in to one of the fields. Now this was no half hearted attempt, a contractor was brought in with a mini digger and spent a good four days. The dimensions are 12 yard diameter, 8 foot deep and has an island . The area was a confluence of victorian earth drains from a mill up in the next area of land, now converted to flats. So there is a good supply of water, unfortunately the water runs straight out again.
The clay lining the bottom is a membrane that ruptures as soon as any weight of water forms, it finds the existing exit drains and runs into my tatty field that water logs at the bottom.
The pond / hole is now 2 years on and despite finding small holes, treading the clay in, encouraging reeds to grow, use of old blankets , it all fails miserably.
The project has basically been left to sort it self out. Its a shame because there are a lot of frogs & toads about, but he would like ducks on there. I've got other requirements.
So, the question of the day is ;- BAM
What fixes are there to line this pond without going to great expense ?