> For the complete documentation index, see [llms.txt](https://knowledge.illumina.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://knowledge.illumina.com/instrumentation/novaseq-6000/instrumentation-novaseq-6000-faq-list/000002572.md).

# How often does the NovaSeq 6000 wash flow cell need to be replaced?

Replace wash flow cells when they become visibly worn. Contact Illumina Technical Support (<techsupport@illumina.com>) for assistance replacing wash flow cells.

Wash flow cells do not contain any chemistry, so consistent replacement is not necessary.

As an alternative to a wash flow cell, a used S4 flow cell can be used as a wash flow cell.

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #2572), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002572%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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