(BPT) - It was supposed to be a community swimming pool, but many people stayed away because they couldn't tolerate the biting, nose-curdling odor of chlorine. Others experienced breathing and skin problems.
So the Evergreen Commons senior center in Holland, Michigan, converted its 65,000-gallon chlorine pool into a saltwater pool. People who had stayed away are now coming back, getting exercise and therapy, while socializing with others.
The senior center is hardly alone. Across the country, traditional chlorine pools are being converted into saltwater pools, sometimes called saline pools.
Swimmers noticed the difference right away after the switch, making their pool experience much more enjoyable. The new system also meant softer water without harsh chemicals that sometimes required a shower to wash off.
Homeowners and pool managers have many motivations for converting pools from chlorine to salt, including:
* Simplified, more convenient maintenance. Saltwater pool owners don't have to buy, transport, store and handle hazardous chlorine chemicals. This saves time and money.
* Water that's gentle on skin, eyes, nose and hair. Saltwater pools have approximately one-tenth the salinity of ocean water and about one-third the salinity of human tears, with no unpleasant chlorine smell.
* A more environmentally friendly approach. Routine pool maintenance doesn't involve the handling and storage of manufactured chlorine and lessens the need for other potentially hazardous chemicals.
How do they work?
Saltwater pools use a generator to convert the salt into mild chlorine that keeps the pool free of harmful bacteria. This chlorine is added to the water at a constant rate, displacing the bad smell and burning irritation we normally associate with chlorine and maintaining the right amount. Once the chlorine sanitizes the pool it converts back to salt. The process continues, over and over again, conserving the salt and keeping sanitizer levels balanced.
The technology for a saltwater pool was first developed in Australia in the 1960s and today more than 80 percent of all pools Down Under use this system. In the United States, saltwater pools first began to see use in the 1980s and have grown exponentially in popularity. According to data published in Pool & Spa News, today there are more than 1.4 million saltwater pools in operation nationwide and an estimated 75 percent of all new in-ground pools are saltwater, compared with only 15 percent in 2002.
The other good news for homeowners and pool managers is that pool salt is far cheaper than traditional chlorine. This is a big reason why so many hotels and water parks in the United States have already made the switch. The initial construction and installation of an electrolytic converter is very small and easily made up in maintenance savings. Even converting an existing chlorine pool to saltwater pool can pay off quickly.
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