Emerald Spa Great Lakes Spa 2008 Owner's Manual download pdf (Page 37)

Spa W

ater Chemistr

An Ozone generator will supplement disinfectants and provide the following benefits:

■

Kills bacteria and viruses

■

Destroys matter which might discolor water

■

Does not affect the pH level of the water

■

Safe for bathers and equipment

■

Has no ”chemical” smell

■

Automatic and requires little or no maintenance

■

REDUCES the need for disinfectants. Does NOT eliminate the need.

Refer to your ozone generator owner’s manual for information on service and maintenance.

Total Alkalinity

Total Alkalinity is important because it helps to keep the pH in the proper range. Test with an appropriate test

kit, and adjust as needed following the instructions supplied with the test kit. If you are using chlorine as a

disinfectant, adjust to 60-100 ppm. If you are using bromine as a disinfectant, adjust to 100-150 ppm. Higher

levels may cause cloudy water and scale formations, while lower levels may lead to corrosion and uncontrollable

pH variations.

Calcium Hardness

Proper calcium hardness levels will help you to maintain other water quality values such as pH and total alkalinity,

and help to avoid cloudy water and/or scaling on the tub surfaces, equipment, and piping. Maintain the calcium

hardness of your spa at 200 ppm when using chlorine as a disinfectant. For bromine, maintain the calcium

hardness between 150-300 ppm. Test with an appropriate test kit and adjust as needed, following the instructions

supplied with the test kit.

Total Dissolved Solids

Tap water contains 50-300 ppm total dissolved solids (TDS). When the level goes above 1500 ppm in a spa, the

efficiency of sanitizers is reduced and corrosion is accelerated. To reduce TDS levels, replace some or all of the

spa water.

NOTE: When water evaporates, minerals from the water and the chemicals are left behind. As the

level of these minerals increases, water treatment becomes more and more difficult. Therefore, at

some point (between 4-12 weeks, depending on use), it is easier and less costly to drain and refill the

spa instead of continuing to treat the same water

Other Water

Chemistry

Considerations

NOTE

Ozone Generator

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Emerald Spa Great Lakes Spa 2008 Owner's Manual Page 37

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