17
TrioPure
TM
Sanitation System
DEL Ozone · San Luis Obispo, CA 93401 · USA · 800-676-1335 · Fax: 805-541-8459
Water Chemistry Parameters - Continued
5b-3 Calcium Hardness And Total Alkalinity
The TrioPure
TM
provides sodium hypochlorite and does not
affect calcium hardness or total alkalinity levels. Maintain and
balance only as needed.
5b-4 Cyanuric Acid (Stabilizer/Conditioner)
Cyanuric acid is sold as “stabilizer” or “conditioner” and allows
the chlorine residual to last longer by protecting it from UV
degradation. With low or no Cyanuric acid, it is possible for the
chlorine to be used up as quickly as it enters the pool. Check
and maintain your Cyanuric acid and salt levels at the same
time since they both tend to deplete at the same rate.
5b-5 SALT LEVEL (Salinity)
Your TrioPure
TM
works most efficiently when salt levels are
between 3,000 and 5,000 PPM. If the salinity levels fall
below 3,000 PPM, add salt according to the Section 3 - 3H,
When to Add Salt, on page 12. Low salt will cause premature
deterioration of the salt cell plates.
5b-6 Saturation Index (Si)
Saturation Index is a formula used to ensure that your total
water chemistry does not fall into a scale-forming or corro-
sive condition. Protect your chlorinator cell, equipment and
cementitious finish by having your water professionally tested
periodically according to the Saturation Index or use this chart
to determine your water balance.
Saturation Index Formula Calculation
[Si = pH + TF + CF + AF - Constant]
TF
CF
AF
TDS
Constant F
16° C
0.4
150
1.8
80
1.9
0-1000
12.1
19° C
0.5
200
1.9
100
2.0
1001-2000
12.2
24° C
0.6
250
2.0
125
2.1
2001-3000
12.3
29° C
0.7
300
2.1
150
2.2
3001-4000
12.4
34° C
0.8
400
2.2
200
2.3
4001-5000
12.5
39° C
0.9
600
2.4
250
2.4
5001-6000
12.6
Test your swimming pool water for:
•
pH
•
Calcium Hardness
•
Total Alkalinity
•
TDS Levels
Use the equivalent factors in the Si equation.
EXAMPLE:
For a pool with tested levels of pH = 7.6, Temperature = 27.2° c, Calcium Hardness = 300, Total Alkalinity = 140,
and TDS = 4,500, the calculated Saturation Index would be:
Si = 7.6 + 0.7 + 2.1 + 2.2 – 12.5 = 0.1.
The acceptable range for the Saturation Index = -0.3 to +0.3.
If Si is above +0.3, scaling, staining or cloudy water conditions can occur.
If Si is below –0.3, water can be corrosive to metals, etch / deteriorate plaster finishes, or irritating to the skin.
Water
Temp.
Calcium
Hardness
Total
Alkalinity
TF = Temperature Factor
CF = Calcium Factor
AF = Total Alkalinity Factor
Constant = TDS Factor
5b-7 Nitrates and Phosphates
Under ideal conditions, nitrate and phosphate levels in
swimming pools are zero (0). However, in some geographic
locations, these compounds are found in source water or are
introduced from the environment. It is important for the pool
owner to be aware that relatively small amounts of either
nitrates or phosphates can have a significant negative impact
on the performance of chlorine in swimming pools.
If you experience conditions such as cloudy water, algae growth,
or unable to maintain a measurable level of chlorine in the
pool (when the TrioPure
TM
is working correctly), have your water
tested at a local pool store for nitrates and phosphates. Your
local pool professional can then advise you on how to remove
these compounds from the pool.
5-C WINTERIZATION
During cold-water conditions, sanitizer demand is reduced
significantly. For colder climate regions with sustained low
or freezing temperatures, contact your local pool professional
for proper pool winterizing instructions.
Step 1
- Drain all plumbing lines to protect the TrioPure
TM
from
damage due to freezing.
Summary of Contents for TrioPure 25
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