Pentair IC20 - Manual (Page 18)

10
IntelliChlor Electronic Chlorine Generator Installation and User’s Guide
6. 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 to the IntelliChlor system. The individual performing the
TDS test (see page 22) may then subtract the salinity level to arrive at a TDS level that would be
compatible to a TDS reading for a non-salt water pool.
7. Metals - Some metals, i.e. copper and iron, can cause loss of chlorine. Also, metals can stain your
pool. Metals can also damage the IntelliChlor Electronic Chlorine Generator. Have your local pool
professional check for metals and recommend methods of removal.
8. Nitrates and Phosphates 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 and phosphates. While a 0 ppm level of nitrates is the ideal, the
pool owner should make sure that nitrates DO NOT exceed 10 ppm. Phosphates should not exceed
125 parts per billion (ppb).
Optimum Pool Water Chemistry Conditions for Salt Water Pools
(using the IntelliChlor Electronic Chlorine Generator)
In accordance with the Association of Pool and Spa Professionals (APSP) standards, it is recommended that
the following pool water chemistry conditions be maintained on an on going basis to help protect pool users,
pool related equipment and surfaces in and around the pool. These values are important to maintaining the pool
equipment in proper operating condition and preventing corrosion, liming or other problems. The IntelliChlor
Electronic Chlorine Generator is warranted to operate properly only if these conditions are met. For more
information, refer to your local agency having jurisdiction, NSPI (National Spa and Pool Institute), the CDC
(Centers for Disease Control), or the WHO (World Health Organization).
Free Chlorine: 2.0 - 4.0 ppm. Above 4.0 ppm may cause corrosion of metal components
Combined Chlorine (Chloramines): None (super chlorinate to remove all chloramines)
pH: 7.2 - 7.8 (USE MURIATIC ACID to lower pH and Soda Ash to raise pH.)
Cyanuric Acid: 50 - 80 ppm
Total Alkalinity: 80 - 120 ppm
Calcium Hardness: 200 - 400 ppm
TDS (includes salt): 3000 minium to 5700 to 6000 maximum ppm
Salt: 3000 - 4200 ppm (ideal 3400 ppm)
Metals (Copper, Iron, Manganese): None
Nitrates: None
Phosphates: Less than 125 ppb
Covered Pools and Vinyl Liner Pool and Lowering Chlorine Output Levels
When using the IntelliChlor Electronic Chlorine Generator with covered pools and/or vinyl liner pools, less
chlorine is needed. It is recommend to lower the chlorine output level while the pool is covered. For more
information about chlorine output levels, see “More or Less Output Buttons” page 8.