According to some fellow players testing in the ONI Discord it is possible for hatches to consume polluted water and dirt from wash basins and outhouses, deleting the germs created. While a neat loophole it would be a good idea to make hatches capable of becoming diseased or simply correcting the buildings so they cannot be eaten from, similar to how hatches used to be able to eat from storage containers.
Steps to Reproduce
Lock a hatch in a bathroom with a used wash basin and outhouse.
Status: Known Issue
We are aware of this issue and have it logged internally but either we do not have a fix ready yet or we are not planning on addressing the issue in the immediate future.