Chemical Free Water Treatment for Pools

PURA Water Tech is a Bio Solutions Company developing sustainable technologies and products. Our main goal is to provide biological water system treatment for pools.

Our experience and expertise is in producing natural water systems for pools, either working with your own contractors, or managing the whole natural swimming pool process with you.





PURA Technology
PWT’s bio-filtration technology relies on bacterial action and an absorption filter to control any build-up of organic nutrients that leads to the growth of algae and pathogens. By controlling these nutrients, the technology delivers clear water without the use of any chemicals or other forms of water sterilisation. This technology has been developed and monitoring by our engineering team for the last 3 years in order to ensure safe naturalised pools.

Advantages of the PWT Technology
The main advantages compared with the conventional chemical pools are:

  • Health benefits as prevents allergies
  • Benefits to the environment
  • Low carbon footprint
  • Low energy consumption
  • More versatility
  • Modular system
  • Pool available all year


Technology Validation
PURA technology system is patented and fulfils all the international guidelines for biological outdoor water treatments for swimming pools. Our partners are OPEN, CENTIMFE and PL-CETEMARES in Portugal and the I&D Centre that carries out the validation studies of the chemicals and microbiological water results. This year PURA won a national prize in technology supported by the Take-Off Program and was selected to participate in an international competition in clean-tech supported by EIT-Climate KIC.


Installation System
The design and type of swimming pool is discussed with our landscape architect and the biological treatment system is installed according to specifications. This system is very versatile due to the fact that it is modular, so it allows for the conversion of conventional chemical pools to naturalised pools.


Our show-room is available all year.
For more information’s +351 966 304 186  or



Website: Chemical Free Water Treatment for Pools


Facebook: Chemical Free Water Treatment for Pools

Phone: 00 351 966 304 186

Address: Rua Aníbal H. Abrantes, n.º 7, 2430-069 Marinha Grande, Portugal