Safe paint for concrete block pond?
Did you run rebar through the blocks?
I am concerned for you that even a little motion will produce cracks
and leaks. Especially that will be a risk if there are sharp corners.
You may find that you would do best if you put a flexible liner that
would not care about motion. It woulkd cost more than paint, but
would not leak! Have you a bottom drain to wrestle with.
Jim
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