Many years ago we had a pond made of silage plastic and eventually it failed and has sat desolate for 10 or so years. My timing is thinking of which cats we had as these have never known the wonder of a pond and they will love it.
So despiration has set in and prices of the "eternal" type of pond liner will only get worse so we are trying a silver hay tarp, doubled and with the black side out. It's worth the try and the price is right. We think this will at least not tear if the deer step in the pond which they probably will. I used to have Papyrus plants that I set around it and they were forever knocking them into the deep water.
The first time we built the pond we had a front end loader on the tractor to move the large rocks. The second time we were younger than we are now but we are persisting as the pond is such a peaceful lure for wildlife and such a joy.
The waxy leaves are popping and this evening is greener than this morning. The forsythia is a disappointment. It blooms sparsly and way too late and only now do I see one lonely little blossom.