Swimming is a great way to stay in shape: it’s a very low-impact, total-body workout.  Unfortunately, the chlorine-based cleaning systems we’ve been using in our pools for years have some very bad side effects, including acute respiratory problems.  Also, these systems are not effective against all of the nastiest things you can pick up from a swimming pool.



If you’re building or remodeling a pool at your home, or if you just want the facts so you can speak with the people in charge of your gym or community pool, here is the dirt on the latest in people- and earth-friendly aquatic fitness technologies...

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