Step 5: Back Filling and Plumbing
Backfill material, typically gravel, is used to fill the area around the pool. Simultaneously, the pool starts filling with water. Once the pool water and gravel backfill are ¾ filled, the rough in plumbing is connected to the skimmer and other fittings. The PVC pipes connect these components to the pump and filter. The pump, filter, and optional salt system and heater are then installed.
Note on filling the pool: The time it takes to fill the pool depends on the method (water truck or house hose). It’s crucial to bring the water and backfill material up together. This process can take a day with a water truck or two to three days with a hose. The house hose can’t run all night because gravel backfill must be added at the same time.
Step 6: Reinforcement and Bond Beam
Once the pool backfilling and rough-in plumbing are complete, reinforcing rebar is attached to the top perimeter of the pool to enhance its strength. After bonding the rebar, approximately eight inches of concrete is poured, creating a robust mechanical lock. This footing, known as the bond beam, strengthens the pool and provides stability for the coping finish, which comes in the next step.
Note: Most inspectors want to see the rebar and bonding, which can take up to 48 hours to inspect.