Glass 1989 SPA Manual De Uso página 81

THE WATER MAINTENANCE QUICK REFERENCE GUIDE
Steps Minimum
Total Alkalinity 125
Calcium
150
Hardness
pH 7,4
4Sanitizer
A. Sanitizing chemicals, such as chlorine, are
oxidants that kill bacteria and viruses in the
is a measure of the amount of unused
chlorine available to sanitize the spa. The
5.0 ppm.
B. Manufactur recommends the use of sodium
dichlor type granulated chlorine for sanitizing
the water. Sodium dichlor is preferred because
it is totally soluble, dissolves quickly and is
nearly pH neutral.
C. Maintaining the proper level of chlorine
during use is extremely important.
can grow rapidly in the warm water. Increase
discomfort to the user's eyes, lungs and skin.
will drop naturally over time.
to be enjoyed.
WARNING: There are several forms of stabilized chlorine available for use in spas and
incorrect product such as tri-chlor, which has a very low pH (2.6), dissolves too quickly
in hot water resulting in extremely high levels of chlorine, and is designed for concrete
Maximum
Sodium Hydrogen
150 Carbonate, or Sodium
Bicarbonate
Calcium Hardness
200
Increaser
Sodium Hydrogen
7,6
Carbonate
See section on Maintaining the Sanitizer Level
33
What Chemicals to Use
To Lower
Sodium Bisulfate
75% hard water
and 25% soft water
or use a Stain and
Scale Inhibitor
Sodium Bisulfate
THE SPA
ADD CHLORINE
SPA; ADD
EN
SAFE