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After filling in the
existing swimming pool, we replaced in with a
pond. First we positioned the three major rocks,
the largest weighing over 10 tons. Then we
contoured the pond which now has a butyl liner. A
soil scientist friend had told me that since the
fill was principally clay, we wouldn't have to
worry about leakage; it would seal itself. Well,
you should have seen my water bill that month!
Ultimately we had to remove all the rocks that
had been so carefully placed around the edge of
the pond, put in a liner, and replace the rocks,
one by one.
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