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Selecting Model Size; Chemistry You Need To Know - Jandy AquaPure APURE700 Installation And Operation Manual

Aquapure electronic chlorine generator
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4.3 Selecting Model Size

Model APURE700
Chlorine Production
283 gm (0.625 lbs) per 24 Hour period.
Residential Pools
One (1) unit per 45 m
(up to 12,000 gal) pool
3
(See General Rule of Sizing notes below.).
Commercial Pools
Check With Manufacturer.
See Commercial Sizing Guide.
General Rule of Sizing: In areas with year-round use and high water temperatures, such as Florida, Texas, Arizona, Las Vegas and Southern
California, the following must be considered:
Year Round Use: Up-sizing the AquaPure or adding more than one AquaPure unit may be recommended for pools that are close to the maximum
size and used year round. Please consult your pool professional.
High Water Temperatures: Because chlorine demand increases with the rise of water temperature, adjustments must be made in order to keep up
with chlorine demand. In hot summer months, where the water temperature rises above 85ºF, you must increase the pump run time, increase the
AquaPure output %, increase the Stabilizer (cyanuric acid) to 75-85 PPM, and super chlorinate with other chlorine agents other than the AquaPure,
to reach break-point chlorination.

4.4 Chemistry You Need to Know

1.
Chlorine Stabilizer (cyanuric acid) is needed to maintain proper levels of chlorine. Most unstable
chlorine is destroyed by the UV radiation from the sun within 2 hours. Chlorine stabilizer should be
maintained between 50 - 75 PPM. See Table 2, page 20.
2.
Nitrates can cause extremely high chlorine demands and will deplete chlorine from your swimming
pool. In some cases Nitrates may even lower your chlorine levels to zero. Your local pool professional
can test for Nitrates. Make sure Nitrates are not present in your pool.
3.
Metals (some metals) can cause loss of chlorine. Also, metals can stain your pool. Have your local
pool professional check for metals and recommend methods of removal.
4.
Chloramines should not be present in pool water. When organic materials combine with Free
Chlorine, Chloramines are formed. This ties up the Free Chlorine in your pool and does not allow
the chlorine in your pool to disinfect. Chloramines also cloud pool water and burn the eyes. (Super
Chlorinate (shock) to remove Chloramines at the initial startup of the pool).
5.
Super Chlorination (Shocking) burns out the organic material that has combined with chlorine.
This frees the chlorine for sanitizing. This is accomplished by raising the chlorine level quickly and
dramatically. When the chlorine level is raised to 5 - 15 PPM the pool water is said to have been Super
Chlorinated (shocked). As pool water is continuously passed through the AquaPure Electrolytic Cell,
all pool water inside the cell is being Super Chlorinated. When the AquaPure is used on pools the pool
water sparkles and does not burn the eyes because of the absence of Chloramines.
NOTE On initial startup of a pool, it is best to Super Chlorinate from an outside source, i.e., use a shock treatment
available at your local pool supplier.
6.
pH produced by the AquaPure is close to Neutral pH. However, other factors usually cause the pH
of the pool water to rise. Therefore, the pH in a pool chlorinated by the AquaPure tends to stabilize
at approximately 7.8. This is within Association of Pool and Spa Professionals (APSP) standards. If
the pool pH rises above 7.8 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.
7.
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 AquaPure system. The individual performing the TDS test
will then subtract the salinity level to arrive at the correct TDS level.
Model APURE1400
Chlorine Production
567 gm (1.25 lbs) per 24 Hour period.
Residential Pools
One (1) unit per 151 m
(up to 40,000 gal) pool
3
(See General Rule of Sizing notes below.).
Commercial Pools
Check With Manufacturer.
See Commercial Sizing Guide.
Page 17

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