3
Ideal Water Chemistry Level
How to test chlorine?
It is recommended that chlorine test samples be collected and compared from two (2) locations in the pool. A higher
level should be found at the pool return line. The high liquid level in the tank return line indicates that CMARCIC is
producing chlorine gas. Collect chlorine samples for testing at the following locations:
The pool return line.
18 inches (457 mm) below the water surface, away from the pool return line.
What kind of salt?
It is important to use only 99% pure sodium chloride (NaCl). This is a common food-grade salt or soft water salt,
which is available in your local store, with a bag of 40-80 pounds. Water can be used to adjust salt particles;
However, they take longer to dissolve. It is prohibited to use rock salt, salt containing more than 1% yellow sodium
cyanide, salt containing more than 1% anti-caking additive or iodized salt.
For all newly laid gypsum pools:
Do not use newly surfaced gypsum to operate IRCF-C20 40, 60. Salt is a corrosive
element, and your swimming pool may be seriously damaged by salt. Wait at least one (1) month after construction
to allow the gypsum to cure, then add salt and operate CMARCIC. Follow the pool surface manufacturer's guidelines
for your specific pool.
For new vinyl-lined pools:
contact the manufacturer for recommended guidelines prior to adding.
How Much Salt to Use?
The amount of salt needed is determined by using the table on page 7. It is specifically dependent on the water
source and the chemicals used to disinfect it; most water contains some salt. Therefore, pool owners must always
test the salt level before adding salt. A handheld meter calibrated for NaCl (salt) can be used to determine the salt
content of the water. The LEDs will provide information about the salt level.
A salt level of 3400 ppm is recommended for optimal water quality.
Low salt concentrations below 2300 ppm or above 6000 ppm will cause the unit to shut down.
Note:
Salt measurement values will vary depending on the measuring device (salt test strips, electronic testers and
titrators). Salt sensor readings are accurate /- 300 pp. For more troubleshooting information on high salinity,
see "Troubleshooting" on page 21.
Saturation Index
The saturation index is a formula that measures the ability to dissolve or deposit calcium carbonate and is used as an
indicator of the corrosiveness and temperature. The formula for well-balanced water results in a range between -0.3
and +0.3, outside of which the pool water is considered out of balance and may damage the pool equipment or
cause scaling of the CMARCIC cell.
Voltage input
230VAC/115VAC
PH
7.2-7.8
Calcium Hardness
50-300 for vinyl
220-320 for fiberglass
350-450 for plaster
Total Alkalinity
60-180 ppm
Ideal Salt Level
2600-4450 ppm
Cyanuric Acid
30-50 ppm
Chlorine
1-4 ppm