How to Install a Variable Depth Liner
- 1). Clean the pool walls and section of the pool above the excavated area of any loose debris. The excavated area should be tamped down to create a solid surface before attempting to install the liner.
- 2). Unroll the liner inside the pool. Work the liner so that the wall sections of the liner extend above the top rails.
- 3). Secure the liner to the top rails by cutting small slits into the liner with a utility knife. Run rope through the slits and tie the liner in place. This allows adjustments to the liner to be made easily.
- 4). Smooth out wrinkles and creases as much as possible using your hands and a soft-bristled broom. A variable pool liner is meant to stretch, and all wrinkles may not come out at installation.
- 5). Fill the pool with water, continuing to smooth out any creases and wrinkles with your hands and the broom.
- 6). Remove the ropes and top rails around the pool wall when the pool is almost full.
- 7). Install the edge of the liner according to the manufacturer's instructions. For overlap pool liners, the edge of the liner is wrapped over the edge of the wall and a plastic coping is placed over the wall. The coping holds the liner in place.
- 8). Cut away excess liner from around the edges of the pool using the utility knife.
- 9). Reattach the top rails over the plastic coping. The top rails also provide additional support to the liner.
- 10
Finish filling the pool with water.
Source...