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Use of chemicals other than those recommended may be hazardous. Follow the chemical manufacturers
instructions.
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Maintaining high salt and chlorine levels above recommended range can contribute to corrosion of pool or spa
equipment.
4.4
Optimum Pool Water Conditions
In accordance with Association of Pool and Spa Professionals (APSP) standards, we recommend the following water
balance conditions be maintained on an on-going basis to protect the pool finish and the equipment and to ensure the
pleasing appearance of the water. The Zodiac AquaPure Ei Series APURE35C is warranted to operate properly only if the
following conditions are met:
Free Available Chlorine
1.0 - 3.0 ppm.
pH
7.2 - 7.6
Total Alkalinity
100 - 120 ppm
Calcium Hardness
200 - 300 ppm
Salt
4,000 - 4,500 ppm
Cyanuric Acid (for outdoor pools only)
10 - 50 ppm (for outdoor pools only).
4.5
Chlorine Testing
If additional chlorine is required due to heavy bather loads, use
sodium dichlor, calcium hypochlorite, liquid chlorine
or trichlor
to maintain an appropriate chlorine residual in the water. Use a home test kit or ask your pool professional to
test your water. Check the expiry date of the test kit as test results may be inaccurate if used after that date. It is
recommended that chlorine test samples be taken from two (2) places, described below. Compare the two (2) samples. A
higher level should be found at the pool return line. The higher level at the pool return line indicates the salt water
chlorinator system is producing chlorine.
1.
At the pool return line.
2.
46 cm (18 in.) below the surface and well away from the pool return line.
4.6
Salt (NaCl Sodium Chloride)
4.6.1
When to Add Salt
Add salt to the pool if the salt is too low (see Table 1) or if salt indicator light turns on. For a new pool or newly resurfaced
pool it is recommended to wait at least 30 days (surface should be completely cured) before adding salt. Do not run the
chlorinator at this time. Manually chlorinate the pool. Contact your dealer for recommendations. Follow the pool surface
manufacturer’s guidelines for your particular pool. For vinyl and fiberglass pools, salt can be added at start up.
4.6.2
What Type of Salt to Use
•
The purer the salt, the better the life and performance of the electrolytic cell. Use a salt that is at least 99.8% pure NaCl.
The salt is an evaporated, granulated, food quality, non-iodized salt. Consult your salt supplier.
•
Avoid using salt with anti-caking agents (sodium ferrocyanide, also known as YPS or yellow prussiate of soda) that
could cause some discolouration of fittings and surface finishes in pool.
•
Water conditioning salt pellets are compressed forms of evaporated salt and may be used but will take longer to dissolve.
•
Do not
use calcium chloride as a source of salt. Use sodium chloride only.
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