Optimum Pool Water Conditions; Chlorine Testing; Salt (Nacl Sodium Chloride); When To Add Salt - Zodiac AquaPure Ei Série Guide D'installation Et D'utilisation

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CAuTiOn
Never use dry acid to adjust pH in arid geographic
areas with excessive evaporation and minimal
dilution of pool water with fresh water. A buildup of
by-products can damage the electrolytic cell.
• The pH condition resulting from the operation of
a salt water chlorination system is close to neutral.
However, other factors usually cause the pH of
the pool water to rise. Therefore, the pH in a pool
chlorinated by a salt water system tends to stabilize
at approximately 7.6. If the pool pH rises above 7.6
have a pool professional test to see if other factors
such as high calcium hardness or total alkalinity are
the cause and then balance accordingly.
• Total Dissolved Solids (TDS). Adding salt to pool
water will raise the TDS level. While this does not
adversely affect the pool water chemistry or clarity,
the pool water professional testing for TDS must be
made aware salt has been added for the sanitizing
system. The individual performing the TDS test
will then subtract the salinity level to arrive at the
correct TDS level.
• New pool water in a recently filled or newly
refinished pool may contain undesirable matter
which could interfere with the salt water
chlorinator's ability to sanitize properly. Make
sure the water is tested by a pool professional and
properly balanced before turning on the chlorinator
system. New plaster pools have a constant acid
demand for six (6) months. Test often and maintain
a proper pH to avoid excess scaling of the cell.
• Sequestering Agents can be used to compensate
for source water which may have unusually
high calcium hardness. High calcium hardness
can contribute to scale formation in the pool.
Sequestering agents will help keep minerals in
solution and under some conditions can prevent
scaling from happening. Consult your pool
professional about the use of a sequestering agent.
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 APURE35PLGC
is warranted to operate properly only if the following
conditions are met:
Zodiac AquaPure Ei Series APURE35PLGC
® ®
Free Available Chlorine
pH
Total Alkalinity
Calcium Hardness
Salt
Cyanuric Acid
(for outdoor pools only)
4.5
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. If additional chlorine is required due to heavy
bather loads, use sodium dichlor, calcium hypochlorite,
liquid chlorine or trichlor to maintain an appropriate
chlorine/bromine residual in the water.
1.
2.
4.6
4.6.1
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
• 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
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Installation and Operation Manual

Chlorine Testing

At the pool return line.
46 cm (18 in.) below the surface and well away
from the pool return line.
Salt (NaCl Sodium Chloride)

When to Add salt

What Type of salt to use

1.0 - 3.0 ppm
7.2 - 7.6
100 - 120 ppm
200 - 300 ppm
4,000 - 4,500 ppm
10 - 50 ppm