Natural Swimming Pool from Compass

HomePool TypesNatural Swimming Pool from Compass

Natural Swimming Pools Natural swimming pools have been growing steadily in popularity over the last few years. To many people, they represent the ultimate in home pools – a chance to swim outdoors in water that is free from harmful chemicals such as chlorine. At Compass Pools we work with the most advanced technology and have developed a pool that eliminates many of the risks and disadvantages associated with traditional natural swimming pools.

What is a natural swimming pool?

A natural pool does not use chemicals in order to keep the pool clean. In theory, this is the ideal as chemicals can dry out your skin or cause stinging eyes even when they are used in the correct quantities. However, chemicals are used to keep your pool clean, and without them you need to find another way to do this. Natural pools utilise reed bed technology in order to naturally filter out dirt from the water. Traditionally, they use large areas of bed and a single pump to circulate. This isn’t a problem in the cold circulating water of a river or stream where the temperature is maintained and the water is constantly being refreshed. But in a small, single body of water like a pool, this theory simply doesn’t work. In order to keep bacteria at bay, temperatures need to be maintained at 5°C or below, however, this is too cold for most pool owners. So at Compass we came up with an alternative.

Why choose a Compass natural pool?

Most natural pools are constructed using concrete – this creates a porous environment which can easily harbour bacteria. To combat this, we offer the first non-porous natural pool available in the UK, which you can choose in a variety of colours. Keeping leaves and debris out of the water is the most important part of keeping a natural pool free from bacteria, as decomposing vegetation produces nitrogen that feed the bacteria. Conventional pools prevent this with floating covers, which benefit the water in a number of ways:

  1. It keeps out the direct
  2. It captures sunlight which naturally warms the pool and reduces your running cost
  3. It eliminates evaporation to save water and energy – heat loss is reduced from 90 per cent to between 1 and 2 per cent
  4. It prevents algae from growing by reducing sunlight and UV

Our specially-designed heat siphon will both heat the water on a cold day and cool the water when it is too hot to ensure that the pool is always the correct temperature. On most natural pools it is not possible to have a cover, as the fluctuating temperature would create ideal conditions for bacteria, but this can be overcome using our heating system. A combination of a reed bed filter and our distributed O3 system will add oxygen molecules around the floor of the swimming pool, jetting them to cover its entire surface. This will kill any bacteria that is introduced, systematically move dirt and debris into the filter system and prevent stagnant areas of water likely to harbour bacteria growth.

The reed bed and filter system

Our reed bed system is typically 25% the surface area of the pool, located lower than the main body to ensure any dirt that hits the surface of the pool is taken away to the filter system. The reed bed uses multiple layers of reeds grown hydroponically so there is no dirt to contaminate the water. The reed bed is linked to an eco-pump, which intelligently varies the speed of the pump to reduce noise and use up to 80% more energy than a conventional pump. Once through the reed bed, the water will pass through two filters; a high-flow filter and a low-flow filter; then onto a contained light ray tube to kill off any remaining bacteria and pump out fresh water. Every natural pool sold by Compass Pools is supported with free monthly microbiological testing for two years, reassuring you that your filtration is working as it should, and your family are safe to swim.

Contact us

If you are interested in having Compass Pools install a beautiful natural pool in your home please do not hesitate to get in contact with us today by calling 0333 4567 111 or emailing

Free Pool Owners eBook by SPATA

Understand what's involved in pool ownership with this free guide by SPATA (Swimming Pool & Allied Trade Association).

SPATA provides standards on swimming pool construction, which all Compass pools meet.

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