Anti-chemical interference time to add, prevent the element at the same time to add
chemical interference, 4 channels of chemical interference cannot be more than 55
minutes, the chemical-resistant interference function is only valid for automatic mode,
custom mode needs user to set the interval time to achieve the effect of chemical
interference.
2.3.3 Manual page
After setting the amount, turn on the right switch, the pump starts to run and stops
automatically after the added amount is reached. If set to 0, turn on the switch then the
pump will keep running, you need to turn off the switch to stop running.