Pentair STA-RITE SC-75P - Start-up Procedure (Super Chlorination); Sanitizer Output Settings and Adjustments; Operating in Winter; General Recommendations

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Start-up Procedure (Super Chlorinaon)
Super Chlorinaon is recommended before pool start-up. Start out with clean, properly chlorinated, pool water from the
beginning. The SC-75 will build up a sucient level of chlorine for sanitaon 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 chlorinaon.
So, it is best to super chlorinate using an outside source at the me of pool start-up. Then, wait unl the chlorine level has
returned to 2.0 to 4.0 ppm before switching on the SC-75.
Sanizer Output Sengs and Adjustments
• Switch on the pool pump switch or pool pump mer. The salt display will blink both LEDs (boom to top) for two (2)
minutes, indicang that it has not checked the salt level yet. Aer 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, indicang there is not enough salt in the pool for chlorine to be produced.
• Set the Sanizer Output to “MED” by pressing the MORE or LESS buon.
• Aer 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 producon by pressing the MORE
buon. If the free chlorine level of the pool water is too high, decrease chlorine producon by pressing the LESS buon.
• Due to a varying free chlorine demand of pool water, it may take a few days to determine the number of daily pool
operang hours and “Sanizer Output” percentage seng for your pool. Connue adjusng as necessary, allowing 24 hours
between adjustments unl the free chlorine level of the pool water is stabilized at 2.0 - 4.0 ppm, per APSP recommendaons.
Operang in Winter
The SC-75 Salt Chlorinator switches o and will not produce chlorine in water temperatures below 12° C. This feature extends
the life of the salt chlorinator. See “Winterizing”.
General Recommendaons
• Read and keep this Installaon and User’s Guide in a safe place.
• Increase Sanizer Output level as necessary aer heavy rain (outdoor pools) and return to normal aerwards.
• Increase Sanizer Output level when air and water temperature rise.
• Increase Sanizer 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 Cauons
• Do not get ferlizer in your pool. Ferlizers contain nitrates, which cause a high chlorine demand.
• Never use dry acid to adjust pH in arid geographic areas with excessive evaporaon and minimal diluon 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 o.
• Do not let the Cyanuric Acid level drop below 30 ppm in outdoor pools.
NOTE: DO NOT USE CYANURIC ACID IN INDOOR POOLS.