Install the pre-fabricated walls of the pool according to manufacturer instructions into the area that has been excavated. Walls are typically installed with a wrench using nuts and bolts provided in the kit. Assemble and attach the wall braces with bolts where the panels meet. The hardware for the braces join the panels together, with the braces extending behind the wall of the pool.
Mix 6 to 7 yards of concrete and install in a 6-inch layer behind the pool wall to set the braces and provide the pool's footer.
Connect the pool to the pool pump and inlets with schedule 40 PVC pipe, according to manufacturer instructions. You may also decide to use a skimmer and automatic cleaner which will also require connection with PVC pipe. PVC pipe can be purchased at a local hardware store if it is not included in the kit.
Smooth any obstructions from the floor of the pool with a shovel and grade the floor of the pool to the depths indicated on the pool kit's instructions. Compress the soil smooth with a tamper.
Spread the a mix of damp portland cement, sand and vermiculite that serves as the pool's base. The precise proportions of each will vary depending on the climate and the size of the pool. A concrete shovel is used to spread the mix to an even 2-inch layer. Use a trowel to even out the concrete and a pool level to ensure that the floor is level and smooth.
Add the pool liner once the floor is smooth. The liner is simply spread out in the pool to fit the pool design. Once the liner is in place, snap the rim onto the edge of the pool to secure the edge of the liner. Position a shop vac hose to get all the air out that is trapped between the liner and the pool wall and floor -- the vacuum should pull the liner up to the structure of the pool without any wrinkles. Stop the vacuum and make adjustments if wrinkles appear.
Backfill, using a wheel barrow and shovel, the area around the now existing pool. Finish off your pool by creating a walkway, deck or landscaping.