How Does an Underground Pool Work?

Preplanning

• Preplanning your pool is one of the most important decisions you can make. Understanding the architecture of your home will help you find the most prominent spot to place a pool. Other than being visually appealing, you must decide how long and deep you want your underground pool to be. Then, check the blueprints to ensure there are no pipes or gas tanks located under the pool site. Once decided, a pool constructor comes to mark the area using stacks to outline the perimeter.

Beginning Construction

• Construction begins after the pool has been planned. This phase takes several weeks to complete. Workers begin digging the plot where the underground pool will be placed. Steel wall panels are built and leveled to form the walls of the pool. Plumbing lines and filter placement are then set up and properly positioned. Concrete is poured to set the walls in place, while the dug up debris is shipped away.

Ending Construction

• After the concrete hardens, a deck crew and electrician come to install the pool's walkway using a shotcrete method. This method sprays concrete by adding a dry mix to water as it sprays through a hose. The electrician grounds it by placing all correct clamps around bolts on and around the pool, ensuring it is safe to walk on. After the deck is completed, the pool is cleaned and drained of all impurities. Plaster is troweled and smoothed on the pool's interior and all materials are cleaned up while the plaster dries.

Installation

• A technician is sent over to the pool site once construction is complete to install the return line filter and pool lights. Then, you fill the pool using a garden hose -- a process that can take hours to complete. Once the pool is filled, the pool is chemically balanced to the correct pH, chlorine, total alkalinity, calcium hardness, cyanuric acid and total dissolved levels by pool workers.