What is an infinity edge pool design?
An infinity edge pool design uses a wall built slightly below water level, so water spills over it into a hidden catch basin and the surface appears to end at the horizon. The illusion is level tolerance, not the view.
Infinity edge, vanishing edge and negative edge all name the same thing. The edge itself is simple. What is not simple is that the wall has to hold dead level along its whole length, forever, on Florida sand. A few millimetres of settlement and the sheet breaks into a dribble at one end, which is the failure everyone has seen and nobody photographs. Southern Pool Designs has engineered luxury pool design and construction across Central Florida since 1997, and every load path here follows the standards published by the Pool and Hot Tub Alliance. On a high water table lot, and much of Central Florida is one per the Florida Department of Environmental Protection, that engineering is the entire job.
Few sights in luxury living compare to a perfectly still sheet of water dissolving into the horizon.
That’s the magic of an infinity edge (also called a vanishing edge or mirror pool) where architecture, engineering, and artistry meet to create a seamless visual illusion.
At Southern Pool Designs, we specialize in these technically demanding, visually breathtaking designs. Pools that don’t just complement a property, but define it.
What Is an Infinity Edge Pool?
An infinity edge pool uses a carefully calculated overflow system that allows water to spill over one or more edges into a hidden trough or “catch basin.”
The result is a reflective, mirror-like surface where the water appears to extend endlessly. Often blending perfectly with a lake, golf course, or skyline view.
It’s one of the most visually striking features in modern pool design. It’s also one of the most technically complex to execute properly.
The Engineering Behind the Illusion
Infinity edge pools are less about magic and more about math.
A flawless edge requires perfect alignment between:
- Elevation and slope, even a 1/8-inch variance can break the illusion
- Hydraulic design, flow rate must balance to maintain a uniform sheet of water
- Catch basin capacity, sized precisely to handle surge volume during use
- Structural reinforcement, accounting for water weight and soil conditions on sloped lots
At Southern Pool Designs, every vanishing edge project starts with detailed CAD drawings and structural engineering. This is to ensure visual perfection and long-term durability.
Our laser-leveling and precision-forming process guarantee a mirror-straight spillway that performs flawlessly year after year.
Why They Work Best on Elevated Sites
Infinity edges perform best when the pool is positioned above grade where the water can visually merge with a backdrop such as a lake, forest, or sunset.
For homeowners building on hillsides, elevated lots, or lakefront properties, it’s the ultimate way to frame a view.
The more dramatic the elevation change, the more powerful the effect.
If you’re working with an architect or builder, bringing our design team in early allows us to align structural elevations and drainage plans to make the edge perfect, both visually and mechanically.
Design Options: Single, Double, and Perimeter Overflow
There’s more than one way to achieve the infinity effect:
- Single-edge infinity, one spillover edge, often oriented toward a view
- Double-edge, two sides vanishing for a more dramatic wraparound look
- Full perimeter overflow (mirror pool), all sides spill evenly, creating a level glass-like surface
Mirror pools are especially popular in contemporary architecture, where symmetry and reflection are part of the aesthetic language.
Each option requires different hydraulic and structural systems which is why few builders can execute them flawlessly.
How We Maintain That “Mirror” Finish
Infinity edges require more than good design. They demand precise ongoing calibration.
We install adjustable weirs, automatic leveling systems, and surge tanks that balance volume even under heavy use.
This ensures that the water always flows evenly over the edge, maintaining the signature “liquid glass” effect.
Why Precision and Stability Matter
Many builders attempt infinity pools without proper engineering; undersizing the catch basin, neglecting reinforcement, or misaligning spillways.
The result? Uneven edges, noisy hydraulics, and endless maintenance headaches.
At Southern Pool Designs, we build above code and design with margin. Not guesswork.
That’s how our mirror pools stay silent, balanced, and visually perfect long after completion.
A Statement Piece That’s Built to Perform
A true vanishing edge pool isn’t just about looks. It’s a symbol of craftsmanship, precision, and performance.
We combine architectural vision with engineering discipline. Creating pools that are as reliable as they are beautiful.
Whether you’re designing a modern masterpiece overlooking Lake Nona or a coastal retreat in Viera, our team ensures that every drop of water moves exactly as it should.
Bottom Line
An infinity or vanishing edge pool isn’t a trend. It’s an architectural statement that transforms a property.
But behind the beauty lies a level of engineering that only comes from experience, precision, and craftsmanship.
At Southern Pool Designs, we’ve mastered that balance.
We don’t just build the illusion of perfection. We engineer it.
Southern Pool Designs, Where architecture meets water.
Frequently Asked Questions
What is the difference between an infinity edge and a vanishing edge pool?
Nothing. Infinity edge, vanishing edge and negative edge are three names for the same detail: a wall set below water level that the water spills over. Builders use whichever term the client used first. The differences that matter are single edge, double edge, or full perimeter overflow.
Do you need a view or a slope for an infinity edge pool?
For a single edge, effectively yes. The illusion works because the eye cannot see where the water lands, so it needs ground falling away or a distance beyond. On a flat lot the honest answer is a perimeter overflow instead, which reads as a mirror rather than a horizon and needs no slope at all.
How much does an infinity edge pool cost in Central Florida?
Meaningfully more than a conventional pool of the same size, and the money is not in the edge. It is in the catch basin, the surge tank, the larger pump moving the whole edge continuously, and the structural work that keeps the wall level on sand. A longer edge costs more than a bigger pool.
Why do some infinity edges stop looking level?
Because the wall moved. Settlement of a few millimetres over a long edge is enough to starve one end and flood the other, and on a high water table lot that is a foundation question decided at design. There is no cosmetic fix once it happens, which is why the engineering is not the part to economise on.
Does an infinity edge pool use more electricity?
Yes. The edge only exists while the pump runs, so the effect is a running cost, not a one off build cost. Variable speed pumps and automation cut it substantially by running the edge when the yard is in use rather than around the clock.