> For the complete documentation index, see [llms.txt](https://aerogcs-green-docs.aeromegh.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://aerogcs-green-docs.aeromegh.com/8.-rpa-settings/8.2-spraying-system/8.2.7-calibrate-pump-flow.md).

# 8.2.7 Calibrate Pump Flow

Calibrate the pumps when facing issues such as inconsistent spraying, changing the type of nozzle, or replacing the pump. This ensures accurate and reliable performance.

**Step 1**: To initiate the calibration of pump flow, tap on the "**Calibrate**" button located in front of "**Calibrate Pump Flow**" on the main screen of the spraying system. The following screen will be displayed.

<figure><img src="/files/Nq14y2xlMBvnIovw1FGo" alt=""><figcaption><p>Calibrate pump flow</p></figcaption></figure>

1\.      Choose the nozzle model.

2\.      Ensure that any remaining air is manually discharged.

3\.      Add 1 litre of water into the spray tank as part of the calibration process.

4\.      Click the "**Start**" button to commence the calibration of the pump flow.&#x20;

A prompt will appear, instructing the user to add 1 litre of water to the tank, as displayed in the following screen.

<figure><img src="/files/Qc87rMm6D28TxwvnWs17" alt=""><figcaption><p>Add water to spray tank</p></figcaption></figure>

**Step 2**: Once the user has added 1 liter of water to the tank, click the "**Start**" button to continue. The following screen will then be displayed.

<figure><img src="/files/hvle8ns7IuY69Znt1FO3" alt=""><figcaption><p>Pour water level in the app</p></figcaption></figure>

Enter the value of the filled water in the tank, then click on the "**Start**" button.

The calibration process will commence and display the following screen on the display.&#x20;

<figure><img src="/files/AWBPEXuXRJBDm2KIE0qi" alt=""><figcaption><p>Calibration</p></figcaption></figure>

Please wait patiently until the calibration process is completed. Once the process finishes, click on the '**Done**' button to proceed.

**Step 3:** After the calibration is completed, the user will be prompted with the question: "**Does the user see any residue?**" Users can respond with either "**Yes**" or "**No**," as indicated in the following screen.

<figure><img src="/files/wt5xWv8rMkd0xIbSrI9e" alt=""><figcaption><p>Residue confirmation</p></figcaption></figure>

If the user finds any residue, click on "**Yes**," and the system will prompt the user to repeat the calibration process.

If there is no residue, click on the "**No**" button, and the system will display a message indicating that the calibration was successful, as shown in the following screen on the display.

<figure><img src="/files/qaSVKrXzXl9Lwebb5n1W" alt=""><figcaption><p>Calibration successful</p></figcaption></figure>