Salt Water Pools
Perfect water balance is determined by pH, alkalinity, calcium hardness and Total Dissolved Solids (TDS). For pool water to be "balanced," all these factors must stay in their proper range. That range may vary slightly,
depending on the finish of the pool and the average temperature of pool water during the swimming season. |
pH is the most important factor in balancing water. It's measured on a scale from 0 to 14, with 0 being the most acidic, 7 being neutral and 14 being alkaline. pH must be maintained in a narrow window between 7.2 and 7.8 for a
pool to be considered balanced. Pure water is neutral. It's only when things are dissolved in it that it skews one way or the other.
And here's the thing... Both high and low pH lessen the sanitizing effectiveness of chlorine. When pH drifts up, chlorine's ability to kill microorganisms (such as bacteria, algae and viruses) is decreased. When pH is low,
chlorine is less soluble in water and escapes (like carbon dioxide gas from a shaken soda bottle). The secret to controlling pH lies in controlling the alkalinity. The proper amount of alkalinity will temper the change in pH of
the water, keeping it in the range where the chlorine is most effective. It's important to control the alkalinity first because it makes balancing pH easier. Alkalinity needs to stay within the range of 80 to 120 ppm.
Calcium and TDS such as magnesium in the water, above 300 parts-per-million (ppm), make it hard to get clear water and it compromises the effectiveness of the chemicals. This can be commonplace, depending on your location.
For example, hardness in Phoenix tap water has been seen as high as 1000ppm. Besides tile scale, other severe warning signs of high levels of hardness include scaling on pump, filter and plumbing lines, white deposits in filter
sand, white stains on decks and landscape and increasing disinfectant chemical consumption.
Unfortunately, high levels of minerals like calcium and magnesium cannot be cured through normal pool maintenance. These minerals need to be removed. Refilling with the same water you started with is self-defeating, wastes time
and water. Some professionals recommend adding a compound that binds to these minerals, but that's a short-term solution. Cloudy water can reappear. If you're in a high mineral area, the best way to control an out-of-control
calcium or magnesium situation is to have water trucked in.
Once water is balanced, the best way to keep it that way is by automating its management. Check out Hayward's Salt Chlorination with Chemistry Automation option. pH and sanitization are continuously monitored and adjusted for you.
The water stays crystal clear and luxuriously soft. No more red eyes or itchy skin. What could be better, right?
Inground Pool Salt Water Pool Systems The Aqua Rite and Aqua Plus is the easiest way for you to sanitize and automate your pool, and keep your crystal clear and silky smooth! The Aqua Rite uses common salt (the same salt
used in water conditioners) and converts it into "free" chlorine. You'll never again have to worry about red irritated eyes, dry itchy skin, bleached bathing suits or green hair! All units are universal 60 or 50hz for
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Deal on Salt Water Pool Systems: Up to $75 Rebate Aqua Plus and Aqua Rite. Rebate PDF
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