Infinity Pools

HomePool TypesInfinity Pools

overflow pool

Water surface level with the surroundings: a unique visual effect.

Overflow and infinity deck level pools are the ultimate in decadent luxury, but as well as being a particularly attractive design of outdoor swimming pools, overflow and infinity pools are also a lot more efficient from a maintenance perspective.

Does the thought of clearing dead leaves and insects from the surface of your swimming pool put you off the idea of having a pool installed? With a Compass Pools innovative overflow and infinity deck swimming pool design this is not an issue you need to be concerned about.

Traditional Wall Mounted Skimmer:

The overflow system is manufactured from the highest-quality 301 stainless steel for years of hassle free service with the option of 316L Stainless for Salt water applications.

Infinity pools are a design trend in the 21st century for their beauty and pure elegance. The infinity pool however is often confused with the overflow pool or deck level pool so we are here to explain the differences in their design and construction and what makes one infinity pool stand out from the rest.


The basics of how an infinity pool works.

A true infinity pool or negative edge pool has to be built on sloped ground, this is because the water level along one or two sides of the pool will flow over these edges into a weir or secondary pool. Most commonly installed overlooking another body of water such as the sea or a lake, making the pool appear to extend to “infinity,” a term described in the Oxford English Dictionary as forever, or the Greek symbol ‘∞’.

An infinity pool edge should not be confused with a deck level pool or overflow pool where the waters edge is the same level as the deck or patio and flows into a grate around the perimeter.

Infinity pool designs

As described above the location of the infinity pool is the first design consideration. Surrounding levels and sight lines have to be carefully considered to achieve the infinity edge look, merging with the secondary body of water. Once the sight lines and position has been determined the materials are the next consideration. A colour closely matching the surrounding body of water has to be chosen or similar in colour to the landscape, where a negative edge pool (infinity pool without the sea or lake to blend) is to be installed.

The installation challenges, how does an infinity pool work

Infinity pools are technically more complex for 2 reasons.

  1. You are installing a pool on a hillside or slope, this does not only make it logistically more complex but from a engineering aspect this poses different strains and pressures on the pool, which need to be designed into the final output. The overflow edges that would normally have the surrounding ground supporting them need to have a wall structure similar to that of a dam.
  2. The overflow effect of the pool along the 1 or 2 edges needs to be designed to the tolerances involved in a overflow or deck level pool. That is a 1-2mm vertical tolerance along the length of the pool. Otherwise the water will not flow evenly. There also needs to be a complex system of balance tanks and pumps to ensure even with ten or more people in the pool the water, the level will remain constantly overflowing, offsetting the volume of the bathers or ‘displacement’.

How a Compass Pool is installed to build an infinity edge

A compass pool is a unibody lightweight structure made of carbon ceramic and installed in one piece by crane or lifting equipment. Because of this lightweight material it overcomes a lot of the structural issues involved with building a concrete infinity pool. It is also a flexible structure; taking into account any possible ground movement. The close tolerances in the pool level are achieved with an adjustable stainless steel edge making it extremely accurate and quick to install. Water level is maintained using VSD (variable speed pumps) and a computer-controlled water level system, to not only achieve the correct water level but to save on running costs.

How much does an infinity edge pool cost to run?

Infinity pools will naturally cost more to run than a conventional freeboard pool as there is a cooling effect on water flowing over the pool edge, this is greatest when the outside ambient temperature is low, as with the beginning and end of the swimming season in the UK. This can be eliminated using Compass Pools variable water level system (vwls) that is linked to the automatic safety cover so that, when the cover is open and the pool is in use, the water level raises up to overflow the infinity edge into the weir. When the pool is not in use, the water is pulled from a twin safety main drain, as per a conventional pool, giving you the best of both worlds.

Without this system you will be looking at additional running costs in both the heating of the water and the running of the overflow system. The exact number is calculated by a multitude of factors, including, but not limited to: air temperature, wind speed, site exposure, soil type and water content, pool temperature and hours of use; making for a difficult calculation.

How much does an infinity pool cost?

Naturally, beautiful things are never cheap and unfortunately the same applies for an infinity pool; for the engineered solutions described above, implemented by a qualified professional installer. An infinity pool is not something that should be attempted by a self builder or first time contractor due to its complexity. In terms of price an infinity pool will typically add a minimum of £30000 over a similar sized conventional free board or skimmer pool. This price is however variable based on the site conditions and access. Compass Pools have been involved worldwide in some of the most technically challenging infinity pool installs from helicopter lifts to pools installed complete suspended in mid air using steel work, with integrated infinity pool covers.

For a full quotation please give us a call on 01444 400621

A Masterpiece of Design

Compass infinity and overflow pools are a masterpiece of form and function. The water in a regular swimming pool normally sits well below the perimeter of the coping stone pool surround. In an overflow and infinity deck pool the water sits at a much higher level.

The innovative design of our infinity and overflow swimming pools uses the same over-engineering commonly used in public and competition pools. Water is drawn uniformly off all areas of the swimming pool’s water surface, which ensures all particles and floating debris are removed from the water before it passes through your pool’s filtration system. The end result is a sparkling, perfectly clean pool with no dead spots and floating debris.

Scientific studies have consistently proven that this type of system is far more efficient at maintaining water movement over the surface of a pool, which is where the majority of particulate debris such as leaves, dead insects and other small particles collect. Not only does a build up of debris look extremely unsightly, but it also clogs up your filter.

Traditional Methods of Clearing Debris are Less Effective

Traditional methods of dealing with surface debris include skimmers and drains mounted on the interior walls of a pool. A Compass Overflow system removes the necessity for a skimmer or wall mounted drain, as the water surface is raised to the same level as the surrounding patio or decking area, which gives you a unique visual effect. The end result is an outdoor swimming pool that is far more aesthetically pleasing.

Full Infinity Deck Level Pools

For the ultimate in opulence, Compass Pools can provide you with a deck level swimming pool where the water flows in all four directions simultaneously. Or, if your pool is installed on the side of a slope, you can enjoy a magnificent infinity effect swimming pool whereby the water flows over one edge, exactly as you might see in a luxury hotel resort.

All Compass Pools infinity and overflow swimming pool systems are manufactured from high grade 301 stainless steel. This ensures corrosion is not a problem during the normal lifetime of the pool and you can enjoy years of hassle free service. For salt water swimming pool applications, there is also a 316L stainless steel option available for extra protection against the corrosive effects of salt water.

For more information about Compass Pools infinity and overflow pool systems, and how they can make your life a lot easier, give us a call today.

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