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# Purge settings on the NextSeq 1000/2000
Users can choose to purge reagents from the cartridge once a run completes. Purging reagents will move the remaining contents from the reagent cartridge to the spent reagents compartment.
1. From the control software menu, select **Settings**.
2. Choose whether the system automatically purges unused reagents to the spent reagents compartment after each run to streamline waste disposal after run completion:
* To purge automatically, select the **Purge Reagent Cartridge** checkbox\*.
* To skip automatic purging, deselect the **Purge Reagent Cartridge** checkbox (this is the default setting). 
3. Select **Save**.
**\***Purging unused reagents adds up to 2 hours to the workflow.\
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| *For any feedback or questions regarding this article (Illumina Knowledge Article #3039), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000003039%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |
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