8 times per day you should be taking water tests from the Hydropool and these tests include chlorine & PH levels. Once completed the results should be compared with the chemical controller in the plant room. If you find a reading differ by 0.2 for the PH & 0.4ppm for the Chlorine the unit will require a re-calibration.

Press the orange dial and the unit will ask you for a 4-digit passcode. Enter the passcode of ‘’1982’’ by scrolling through the numbers and press the orange dial.

After that you will need to turn the dial which will highlight ‘ok’ and press the orange dial.

To calibrate the chlorine, turn the dial so it highlights the figure below the PH.

To adjust, press the orange dial which will again underline the figure. Once you have the designated figure press the orange button inwards.

Then turn the orange dial so it highlights the ‘ok’ option and then press the orange dial.

Next turn the orange dial so it highlights the ‘escape’ option.

Press the orange dial and then this will ask you to save your changes. Press the black button on ‘YES’

