I some how died of dehydration while purifying water near a river,
I had several dozen bottles and filled half of them with water and made about 13 clean waters and drank most of them and then restarted the process to fill the rest of the bottles, during this process my character in explicitly died of dehydration and i saw a note i had not drank for 2 days.
I also noticed a problem when purifying water that item associations would be bad, IE i would fill a bottle then all my empty bottles and the shirt would be on the same key and would have to pick up and drop them again