People ask and answer pond questions there. Occasionally I get an common question and share it here. Here's one about liner suddenly rising from its floor:
Questions:
We have an in ground, 8' fish pond that was built 4 years ago. We buried an 8' stock tank and laid the pond liner over that and put about a billion rocks around it. This year, water has started getting between the stock tank and pond liner and rising the liner up out of the pond. A recent 5 " rain really has brought the issue to a crisis point. I see no obvious leak in the liner and we really don't want to move all those rocks to lay in a new liner...what should we do? We have pumped it out a couple times, but water keeps getting between the liner and stock tank.
Answer:
You have methane between the tank and the liner. No amount of rocks will keep it from rising. Try to make a place where you can pump out the water that has gotten between the two. That will help until it happens again. The only way to stop it from happening is to raise the entire pond, tank and all. (Shudder.) Or you could build up the sides, make the pond bigger and use the weight of the water to keep the liner in place, but if you do that, you might as well just start over with just a liner and no stock tank. You have a big job ahead of you.
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