# Peristaltic pumps not stopping with manual control

**URL:** <https://www.evolver.bio/t/peristaltic-pumps-not-stopping-with-manual-control/265>\
**Category:** Peristaltic Pumps\
**Created:** [February 16, 2021, 9:12pm UTC](https://www.evolver.bio/t/peristaltic-pumps-not-stopping-with-manual-control/265 "2021-02-16T21:12:19Z")\
**Posts on this page:** 1\
**Showing post:** 21

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**Author:** ![bgwong](https://yyz1.discourse-cdn.com/flex035/user_avatar/www.evolver.bio/bgwong/32/262_2.png) [@bgwong](https://www.evolver.bio/u/bgwong)\
**Post date:** [February 17, 2021, 2:15am UTC](https://www.evolver.bio/t/peristaltic-pumps-not-stopping-with-manual-control/265/21 "2021-02-17T02:15:26Z")

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If you change the conf file back to the default, you can probably revert it back to its original state. This doesnt solve the problem but you can roll it back by changing the value on line 33 back to “null”

> <https://github.com/FYNCH-BIO/evolver/blob/master/evolver/conf.yml#L33>

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