To install a pond liner, you’ll need a few basic tools and supplies to ensure a smooth, secure fit. A measuring tape is essential to confirm the pond’s dimensions and ensure you have the right liner size. A shovel or spade will help shape the pond, remove rocks, and level the base. A spirit level is very helpful to ensure your pond edges are even so that the pond's water level is even all around.
You'll probably need a rake to smooth the bottom of your excavation and remove any sharp debris that could damage the liner. When placing the liner, recruit a few helpers or use clamps to hold it in place as you spread it to eliminate wrinkles, especially for larger ponds. If you'll be joining multiple liners on-site, a heat gun, seam tape or adhesive is necessary to create watertight seals at the overlaps. For underlayment installation, a utility knife is useful for cutting it to fit the pond contours.
