Do I need an underlayment for my pond?

To extend the life of your liner, we strongly recommend using an underlayment. Pond liners are susceptible to punctures and tears caused by sharp rocks, gravel, and tree roots. Underlayment is designed to cushion the pond liner, providing an extra layer of protection against punctures. It also protects the liner from damage caused by insects and rodents. If you have very rocky soil, you may also install a 2 to 3-inch layer of sand first, then the underlayment, followed by the PVC pond liner for additional protection.



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