Preparation

• The installation area must be perfectly flat, but it must also be free of rocks and small stones, sticks and twigs, tree roots, any vegetation and burrowing animals or insects. All of these items pose potential puncture problems. Rake the entire area to remove all items. Spray herbicide on the surface to guard against growth. Place masonry sand on the site and rake it to a height of between three and four inches. Dampen the sand and tamp it down to compact it for a flat, even surface.
  
  

Installation

• Measure and put together a styrofoam floor ahead of time using pool flooring that is about 1-/4-inch thick. Assemble this flooring on a clean, dry surface such as a gymnasium floor, cutting it to fit your pool exactly. Use specially designed adhesive tape purchased with the flooring. Place the flooring, tape side down, inside of the pool on top of the sand. Use pool cove on the inside perimeter of the pool to form an even slope and to hide the edges of the pool flooring. Pool cove locks into place on the bottom track of the pool wall. The liner goes on top of this prepared surface. The cushion of sand and styrofoam provide comfort, absorbs footprints and gives the pool an even surface for standing and vacuuming.
  
  

Overlap

• An overlap liner fits inside of the pool and the excess liner comes up and hangs over the wall all around the pool. Clothespins can hold the liner in place on the pool wall until fill water is almost up to the skimmer level. Observe the filling of the pool as the water pushes the liner into the corners, which may create a pulling effect on certain portions of the liner. Loosen clothespins, provide more slack from the overlap portion of the liner and refasten the clothespins. After the pools' top rail is in place, cut the excess liner off or tuck the excess under the top ledge, where it is hidden but available for future use.
  
  

Beaded

• A beaded liner is less forgiving and requires exact measurement. The liner's bead, or raised edge, inserts into a beaded liner track that has a groove to accept it and hangs inside of the pool, two inches from the top of the wall. There is no excess, so centering of the liner is critical before filling begins. Place the liner in the track and carefully push out all wrinkles evenly all around the pool, so that the liner is flush with the pool cove around the entire perimeter.