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THE SPA WATER MAINTENANCE PROGRAM
Each step in your water maintenance program is dependent on
the completion of the previous steps. Omitting a step or failing to
reach the recommended range may cause an imbalance in your
spa and its components, as well as cause discomfort for the user.
BALANCING THE TOTAL ALKALINITY (TA)
A. The recommended Total Alkalinity (TA) for your spa water is
125-150 ppm.
B. Total Alkalinity is a measure of the total levels of carbonates,
bicarbonates, hydroxides, and other alkaline substances
in the water. TA is referred to as the water's "pH buffer". In
other words, it's a measure of the ability of the water to resist
changes in pH level.
to low. Fluctuations in pH can cause corrosion or scaling of the
spa components. Low TA can be corrected by adding sodium
D. If the Total Alkalinity is too high, the pH level will tend to be
using sodium bisulfate (pH/Alkalinity Down).
E. Once the TA is balanced, it normally remains stable, although
the addition of more water with a high or low alkalinity will raise
or lower the TA reading of the water. F. When the Total Alkalinity
is within the recommended range, proceed to the next step.
BALANCING THE CALCIUM HARDNESS (CH)
A. The recommended Calcium Hardness (CH) level for your spa
is 150-200 ppm.
B. Calcium Hardness is a measure of the total amount of
dissolved calcium in the water. Calcium helps control the
corrosive nature of the spa's water. That's why calcium-low
water (commonly known as "soft" water) is not recommended.
It is very corrosive to the equipment, and can cause staining
of the spa shell.
C. If the CH is too high (commonly known as "hard water"),
formation of scale on the spa's shell surface and equipment
can result. CH can be decreased by dilution–a mixture of 75%
hard and 25% soft water will usually yield a reading within the
correct range. If soft water is not available or practical for you,
a stain and scale inhibitor should be added to the spa water,
according to label instructions.
D. If the CH is too low add CH Increaser.
E. Once the CH is balanced, it normally remains stable, although
the addition of more water with a high or low calcium content
will raise or lower the CH reading of the water.
F. When the Calcium Hardness is within the recommended range,
proceed to the next step.
BALANCING THE pH
A. The ideal pH level for your spa water is 7.4 -7.6.
above 7 are alkaline; those below 7 are acidic. Maintaining the
proper pH level is extremely important for:
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 (pH/Alkalinity Up) to the spa water.
D. If the pH level is too high, the following may result:
If the pH is too high, it can be decreased by adding sodium
bisulfate (pH/Alkalinity Down) to the spa water.
NOTE: After adding sodium hydrogen carbonate, or sodium
bisulfate, wait two hours before testing the water for pH.
Measurements taken too soon may not 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.
F. When the pH is within the recommended range, proceed to
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-Triazine-
trione (Sodium Dichlor or chlorine) as a sanitizer.
WARNING: DO NOT use tri-chlor chlorine, bromo-chloro-
dimethyl-hydantoin (BCDMH), or any type of compressed
bromine or chlorine, acid or any type of sanitizer which is
not recommended by Manufacturer.
THE WATER MAINTENANCE QUICK REFERENCE GUIDE
Ideal Range (ppm)
Steps
Minimum Maximum
Total
125
150
1
Alkalinity
Calcium
150
200
2
Hardness
pH
7,4
7,6
3
4
Sanitizer
See section on Maintaining the Sanitizer Level
CHLORINE (SODIUM DICHLOR)
OR TEST STRIP READING
5,0
4,0
3,0
2,0
1,0
0
A. Sanitizing chemicals, such as chlorine, are oxidants that kill
bacteria and viruses in the water. The Free Available Chlorine
(FAC) is a measure of the amount of unused chlorine available
to sanitize the spa. The recommended FAC for your spa water
is 3.0-5.0 ppm.
B. Manufactur recommends the use of sodium dichlor type
granulated chlorine for sanitizing the water. Sodium dichlor is
34
What Chemicals to Use
To Raise
To Lower
Sodium
Hydrogen
Sodium
Carbonate,
Bisulfate
or Sodium
Bicarbonate
75% hard water
Calcium
and 25% soft
Hardness
water or use a
Increaser
Stain and Scale
Inhibitor
Sodium
Sodium
Hydrogen
Bisulfate
Carbonate
SAFE
ADD CHLORINE
CHLORINE TO REACH
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