Quote:
Originally Posted by Oilers
Kien,
Your pond is looking better and better each year. I am just wondering what the use of the cardboard is.
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Thanks! For additional cushioning to help keep sharp objects like rocks and twigs from poking at the pond liner. It's a bit overkill but I had LOTS of cardboard boxes around and it worked out quite well. A lot cheaper than buying actual pond liner fabric. I have also previously used a generous layer of newspapers and have also seen old carpet or carpet underlayment used.