For small landscaping ponds of just a few hundred gallons, spreading pond lining material by hand is a simple process. However, even the smallest farm ponds are large enough to require machinery for moving and spreading the liner. Pond liner installation generally requires both a combination of machine and hand spreading. Bring the folded roll of material into the pond with a tractor or backhoe, but don’t try to drag it behind the machine to spread it. You or a crew of installers will need to carefully unfold, unroll, and spread the liner sections by hand.
Set aside plenty of time for smoothing wrinkles and adjusting the fit of the liner in tricky areas. Many pond installers find that working out corners and wrinkles takes longer than the entire rest of the process. Leaving wrinkles in place interferes with proper seam sealing and traps air. This can create bubbles that lift the liner up later and displace water.
Liners are buried around the edges of a pond to keep the material anchored in place, so start by laying one edge of a roll in one of the edge trenches. Work from that edge until you’ve covered a section to the opposite side, and then start again. Leave the manufacturer’s recommended amount of overlap between strips for proper seam sealing or welding. Schedule pond liner installation for a relatively dry period since seam sealing often requires an absence of moisture for proper bonding.