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AUTOMATED WATER
TREATMENT

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From its beginning in 1976, SBCS has been a leader in the development of automation technology for water treatment.

Company President, Dr. Jacques M. Steininger, has published numerous technical papers on the application of Oxidation-Reduction Potential (ORP) to sanitizer control in water.

More recently, the company has been a leader in the application of telecommunications to remote control and operation of water treatment systems.

The company maintains an active research and development program, including a laboratory for research on water chemistry.

Dr. Jacques M. Steininger
President

Dr. Jacques M. Steininger, President

Water treatment for swimming pools, spas and industrial applications requires the combination of multiple physical and chemical processes, including water recirculation, filtration, chemical treatment, heating and water replacement.

CHEMTROL® makes the only controllers capable of automating all these processes, including:

PRINCIPLES OF WATER TREATMENT

The primary objectives of water treatment are:
  1. Maintaining clean and safe water that meets the bacteriological and physiological requirements of state and local Health Departments,
  2. Protecting the equipment from corrosion or scaling caused by the aggressiveness of water and its constituents.

To meet these objectives, the National Spa and Pool Institute (NSPI) has developed the following guidelines:

  • adequate filtration with a maximum turnover rate of six hours for a pool or 30 minutes for a spa,
  • proper water balance with a pH between 7.4 and 7.6, alkalinity between 80 and 120 ppm (mg/l) and Langelier Saturation Index between 0 and 0.3,
  • proper sanitation with an Oxidation-Reduction Potential (ORP) above 650 mV and a cyanuric acid level below 40 ppm (mg/l),
  • proper water quality with Total Dissolved Solids (TDS) less than 1,500 ppm (mg/l),
  • water temperature in spas below 104 F (40 C.

IMPLEMENTATION

Most states required automatic means for chemical feeding of sanitizer and pH control chemicals in all commercial, semi-public and public aquatic facilities. As a minimum, this refers to an automatic chemical feeder such as a pump or an erosion-feeder or some other kind of fixed rate dispenser with or wothout a timing device.

A number of health departments are now requiring the use of chemical controllers.  These are more advanced feeders with electronic monitoring sensors and feedback.  Examples of these health departments are: the State of Vermont, the State of Ohio, the State of North Carolina, the City of Anchorage, Alaska, Lacrosse County in Wisconsin, etc.  The list is growing rapidly.

REFERENCE MANUALS

For more information on water treatment in pools and spas, we recommend the following reference manuals:
  • "Basic Pool and Spa Technology", published by the National Spa and Pool Institute (NSPI)
  • "Pool/Spa Operators Handbook", published by the National Swimming Pool Foundation(NSPF)
  • "Aquatic Facility Operator Manual", published by the National Recreation and Park Association (NRPA).