does anyone know of an inexpensive alternative to pond liner? i'm making a waterfall feature but wasn't interested in spending too much money on the liner. i'm not planning on having plant/animal life in the pond part so the material doesn't necessarily have to be 'safe' for that. any ideas would be appreciated. i have a cement pond in the ground now, it's old i guess as the cement is starting to crack in some places. i was just going to reline it with liner but was looking for other ideas. thanks
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