- 1). Lay the liner out on a large flat surface. Spread the liner out and remove as many wrinkles as possible.
- 2). Lay the second liner slightly overlapping the first liner. Spread the liner out and remove as many wrinkles as possible.
- 3). Tape the two liners together with at least two pieces of waterproof tape, running the length or width of the liners.
- 4). Turn the liner over, smooth the liner out, and apply tape to the back side of the liners.