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VIII. Maintenance
A. Testing
1.
Test the sanitizer and pH levels with a test kit weekly or
more frequently as required by local health codes.
2.
Adjust the pH in the pool or spa as needed to maintain a
level between 7.4 and 7.6.
B. Cleaning the Sensor Tips
1.
It is important to keep the sensor tips clean to ensure
accurate sanitizer level readings. When the sensor tips
become dirty, the sensors may read lower than actual
sanitizer levels and cause the controller to oversanitize.
Note: A sensor tip coated with scale or oil will not look
visibly dirty.
2.
As a general rule, the sensor tips should be cleaned every
two to four weeks for commercial pools and spas, and once
a month for residential pools and spas. Cleaning frequency,
however, can vary from one body of water to another. To
determine the appropriate frequency for your pool or spa,
note the light bar reading prior to cleaning. After cleaning
the sensor, allow a stabilizing period of approximately ten
minutes. If the light bar reading is identical to the reading
prior to cleaning, the sensor was not dirty and the time
between sensor cleanings can be increased.
3.
To clean the sensor tip, turn off the controller and gently
remove the sensor from the compression fitting. Swirl the tip
for five seconds in muriatic acid (diluted 5 to 1) or white
vinegar, and rinse it in water. DO NOT TOUCH, WIPE OR
BRUSH THE END OF THE SENSOR. For commercial pools
and spas, every third cleaning, swirl the sensor tip in a
solution of liquid soap and warm water. Rinse with water.
4.
Gently replace the sensors and turn on the controller.
5.
Allow the controller to operate for a few minutes to get an
accurate reading. Adjust the selection knob if necessary.