BigJC
Active Member
I've just taken a reading from my Young's APA which has been causing me some grief recently and at first it appeared higher than the last one so I left the hygrometer in the tube for a few minutes and it slowly dropped until it read 0.10 from an initial reading of 0.25. Is this normal? Usually when I take a reading I take it from when it first goes in (making sure the foam is gone) and that's that, I never leave it in for a few minutes and then take the reading as I presumed the gravity would be the same irrespective of whether you took the reading immediately or an hour later.