An infinity-edge pool is built so the water seems to disappear into the horizon. Perimeter-overflow pools are a related design. Both need real engineering to build correctly. Here is what goes into one and what to know before you build.
How an infinity edge actually works
An infinity edge, also called a vanishing or negative edge, is created when one wall of the pool is built slightly lower than the water level. Water flows over that edge into a hidden catch basin below, then is pumped back into the pool, creating the illusion that the water extends to the horizon.
The effect depends on precise construction. The edge has to be perfectly level, the catch basin correctly sized, and the circulation system properly engineered. This is not a feature to trust to an inexperienced builder.
Sites that work for a vanishing edge
Infinity edges shine where there is a view to borrow: a sloping lot, a hillside, a green belt, or a water view. The lower edge frames that backdrop and makes the pool feel connected to the landscape beyond.
On flatter lots, a perimeter-overflow design (where water spills over every edge into a slot drain) creates a mirror-like surface and a similar look without needing a dramatic view.
Details that complete the look
Fire and water features, sun shelves with bubblers, integrated spas, automated covers, glass tile, and lighting are the details people add.
Smart automation ties it together, letting you control temperature, lighting, water features, and the spa from your phone, day or night.
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