I found a quality water node while out boating, so I filled a barrel and brought it home with me. So I had a full barrel of Q 59 water. However, as I've been using it a bit -- a bucket here, a bucket there -- the water quality in the barrel has decreased to Q 57.
I noticed this mainly because I was filling 2 buckets after one another, and 1 came out Q59 and the other came out Q57. Checked the barrel, and lo and behold, the entire barrel's quality has dropped.
Is this normal?