A40 2018 Production stats vs peers, page-4

Your spring water analogy is mindbogglingly overly simplistic. it displays a complete lack of understanding of the actual process of mining and treatment of ores and while some other mines have a more involved treatment process if A40's was so simple then then would not have had to lower their production guidance and then miss the lowered guidance and be lowered again.

Clearly they are other issues at play.

Cheers

Newbie Thomas