> For the complete documentation index, see [llms.txt](https://docs.voltera.io/docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.voltera.io/docs/nova/troubleshooting/print-issues/material-oozing-or-leakage.md).
# Material Oozing or Leakage
If your printing material is oozing between raises or prints, it is likely that your Relief Pressure is set too high or your plunger's O-ring is missing or has failed. First, inspect the O-ring to insure it is properly in place and hasn't become swollen. If you need to replace it you can follow the steps in our [NOVA Maintenance](broken://pages/y0uElZSzp2qR9FgSfpo2#replacing-your-o-ring) guide. If the O-ring looks good, then you’ll want to adjust the relief pressure before you try printing again.
This can be adjusted two ways. Either indirectly by running through the [Calibrate](/docs/nova/learn-nova/software-overview/calibration.md) workflow for your material again, or directly in the Check Flow step in the Dispense workflow.
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