Glass 1989 SPA Manual De Uso página 80

BALANCING THE pH
A. The ideal pH level for your spa water is 7.4 -7.6.
those below 7 are acidic. Maintaining the proper pH level is extremely important for:
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C. If the spa water's pH level is too low, the following may result:
If the pH is too low, it can be increased by adding sodium hydrogen carbonate
D. If the pH level is too high, the following may result:
NOTE: After adding sodium hydrogen carbonate, or sodium bisulfate, wait two
be accurate.
E. It is important to check the pH on a regular (weekly) basis. The pH will be affected
by the bather load, the addition of new water, the addition of various chemicals, and
the type of sanitizer used.
MAINTAINING THE SANITIZER LEVEL
A. Sanitizer is extremely important for killing algae, bacteria and viruses, and preventing
unwanted organisms from growing in the spa. At the same time, you don't want too
high a sanitizer level, or it can irritate your skin, lungs and eyes.
B. Always maintain the sanitizer level in your spa at the recommended level.
C. Manufacturer recommends only Sodium Dichloro -s-Triazinetrione (Sodium Dichlor
or chlorine) as a sanitizer.
WARNING: DO NOT use tri-chlor chlorine, bromo-chloro-dimethyl-hydantoin
sanitizer which is not recommended by Manufacturer.
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