If you do not see any chemicals flowing through the clear tubes (lines) into the tub, please follow these directions in order to prime the lines of the Auto Doser. 

These directions can be followed for both the Acid Pump (Muriatic Acid) and the Cl2 Pump (Chlorine). 

1. Press "Menu"
2. Highlight either "Acid Pump" or "Cl2 Pump". (Which ever one is not primed - both should be on "Auto" mode)
3. Press the left blue circle button below "On 10s". You should see the chemicals starting to work their way through the line and the black dial begin turning. It will count down 10 seconds and when it finishes, it will no longer be in "Auto" mode. You can press the "On 10s" up to 5 times in order to get the chemicals through the line.
4. Once the chemicals are through the line they should be primed. Press the right blue circle under "Auto" to put the pump back in "Auto" mode. (Very important that both pumps are in "Auto" mode before you exit the screen)
5. Press the menu button to go back to the main screen. You should begin seeing the pH and ORP adjusting to the proper levels. 

If you are still experiencing any priming issues, please email us at commercial-support@plunge.com.