Start-Up Procedure (Super Chlorination); General Recommendations; General Cautions - STA-RITE SC-75 Guide D'installation

Start-up Procedure (Super Chlorination)

Super Chlorination is recommended before pool start-up. Start out with clean, properly chlorinated, pool water from the
beginning. The SC-75 will build up a sufficient level of chlorine for sanitation in several hours. However, if the pool water has
a high demand from the start-up the SC-75 will not be able to produce enough chlorine to reach break-point chlorination.
So, it is best to super chlorinate using an outside source at the time of pool start-up. Then, wait until the chlorine level has
returned to 2.0 to 4.0 ppm before switching on the SC-75.
Sanitizer Output Settings and Adjustments
• Switch on the pool pump switch or pool pump timer. The salt display will blink both LEDs (bottom to top) for two (2)
minutes, indicating that it has not checked the salt level yet. After two (2) minutes, the salt will be checked and one (1) of
the salt level LEDs will be displayed. If the salinity is below 2600 ppm, the salt display will light the red LOW SALT indicator,
and the CELL light will go blank, indicating there is not enough salt in the pool for chlorine to be produced.
• Set the Sanitizer Output to "MED" by pressing the MORE or LESS button.
• After 24 hours, use a reliable test method to test the pool water for free available chlorine. The ideal range to maintain
is 2.0-4.0 ppm. If the free chlorine level of the pool water is too low, increase chlorine production by pressing the MORE
button. If the free chlorine level of the pool water is too high, decrease chlorine production by pressing the LESS button.
• Due to a varying free chlorine demand of pool water, it may take a few days to determine the number of daily pool
operating hours and "Sanitizer Output" percentage setting for your pool. Continue adjusting as necessary, allowing 24 hours
between adjustments until the free chlorine level of the pool water is stabilized at 2.0 - 4.0 ppm, per APSP recommendations.
Operating in Winter
The SC-75 Salt Chlorinator switches off and will not produce chlorine in water temperatures below 12° C. This feature extends
the life of the salt chlorinator. See "Winterizing".

General Recommendations

• Read and keep this Installation and User's Guide in a safe place.
• Increase Sanitizer Output level as necessary after heavy rain (outdoor pools) and return to normal afterwards.
• Increase Sanitizer Output level when air and water temperature rise.
• Increase Sanitizer Output level when number of pool users increase.
• Use Cyanuric Acid ONLY as necessary to stabilize chlorine in the pool water in outdoor pools.
NOTE: DO NOT USE CYANURIC ACID IN INDOOR POOLS.
• Once a month take a pool water sample to a pool professional for a complete analysis.

General Cautions

• Do not get fertilizer in your pool. Fertilizers contain nitrates, which cause a high chlorine demand.
• 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 byproducts can damage the SC-75.
• Do not add any pool water balancing chemicals (including salt) unless the SC-75 is switched off.
• Do not let the Cyanuric Acid level drop below 30 ppm in outdoor pools.
NOTE: DO NOT USE CYANURIC ACID IN INDOOR POOLS.
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