The specialist for safe and clean swimming water

Unique measurement for perfect water quality

Safe and accurate dosing with DIGI Peristaltic pumps

Professional advice for safe and clean swimming water!

Professional training for all levels

The specialist for safe and clean swimming water

Unique measurement for perfect water quality

Safe and accurate dosing with DIGI Peristaltic pumps

Professional advice for safe and clean swimming water!

Professional training for all levels

SEM Water Treatment, your swimming pool specialist

SEM Waterbehandeling BV was established in 1992 and, throughout the years, has grown into the specialist in water treatment systems for swimming pools. We provide our public-sector customers with solutions for maintaining the perfect water quality, solutions that fully conform to all legal requirements. In addition to the Netherlands, we also serve customers in Belgium, France, England and Canada.
 
You can trust our professional advice and count on our solutions for all your water quality issues. Of course, we are also the right address for your professional water-treatment equipment needs, for measuring pH, free chlorine and hydrogen peroxide levels and other parameters. In-house, we develop and manufacture measurement and control systems, hand-held meters, peristaltic pumps and flow meters.
 
We work together with professional installers and swimming pool constructors to create customised, total solutions... Our specialists are standing by, ready to assist you!

Fast delivery
Fast delivery of spare parts and accessories – order before 13:00, delivery the next business day!
Water optimisation
Independent advice for the perfect water quality in order to conform to all legal requirements (W.H.V.B.Z and VLAREM II).
Monitoring
Always nearby to give support by remote monitoring of the water quality.

Coronavirus measures (COVID-19)

Due to the situation with the Coronavirus (COVID-19), we have taken measures to ensure a safe visit to SEM Water Treatment. We trust that our measures are taken for your own health and that of our employees. Read our measures HERE Our service technicians also observe the precautions to ensure a safe site visit.  

SPI – a unique and reliable monitoring method!

One of the most popular brands within the SEM Waterbehandeling product line is SPI. SPI stands for Special Precision Instrument. With our portable, hand-held device SPI D141 it is easy to determine the water quality in the field. The automatic in-line device SPI C/P 170 continuously monitors the water quality and, if necessary, adjusts the dosing of the chemicals.

  • Accurate measurements of free chlorine and peroxide
  • Measurement of pH and flow
  • Measurements according the colorimetric principle, which is not influenced by external factors such as pH, flow rate, temperature and salt content
  • Easy to operate, even remotely!
  • Reduced consumption of chemicals

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