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Pursuing Toxin-Free Water
For years, John Cohen has dedicated himself to meeting the needs of clients averse to using traditional sanitizers.  As he reports in this compilation of three recent articles -- gathered together here for your forwarding convenience -- his quest is all about mirroring natural systems.    
Toxin-Free Choices
  Wrapping up his series on a comprehensive approach to healthier pool water, John Cohen goes into great detail in defining system components and making specific product recommendations.
A Toxin-Free Future
  The three most recent editions of WaterShapes have carried trailblazing articles by John Cohen on his quest to define and develop a toxin-free approach to swimming pool and spa water. I offered no comment when the series started, basically because the articles had to stand straight and tall on their own - but also because
Interventions
  Tireless in his quest for information about and approaches to the creation of toxin-free pools and spas, John Cohen has spent years weighing observations of nature and the human body and figuring out ways to use what he's learned to help people swim in pure, clean, safe water.    
Nature’s Blueprint
  For years, John Cohen has dedicated himself to meeting the needs of clients averse to using traditional sanitizers.  As he reports in the first in a series of articles, his quest began with a narrow-minded 'expert' and has since pulled him toward a biologically inspired set of solutions.  
Chlorine Conversations
In recent years, it's been difficult to avoid two large and related discussions about water treatment as it relates to swimming pools and spas. One the one hand are discussions of the evils of chlorine, which, after more than a century of common and beneficial use, is still widely misunderstood by homeowners and many professionals in the watershaping trades.  On the other are conversations about chlorine-free pools and spas - another set of exchanges where there's proving to be
2016/3.1, March 2 — Chemical-Free Savvy, Pond Chores, Longwood Rebirth and more
THE ESSENTIAL E-NEWSLETTER FOR WATERSHAPE DESIGNERS, ENGINEERS AND BUILDERS March 2, 2016 www.watershapes.com FEATURE ARTICLE…
Chemical Solutions
When it comes to watershapes designed for human interaction - including pools, spas and fountains - the chemical treatment of the water is a key safety issue that can be handled in a variety of ways.  Indeed, says water-chemistry expert Jeff Freeman, so many products and so many approaches are available that the average designer or builder could probably use a bit of guidance to help them keep everything straight, both for themselves and their clients.