Hello ! My first post ever. I've been reading all the posts with much interest and have had much the same experiences as most posters in regards to gold recovery and refining . I was bit by the gold bug about three years ago and have tried many techniques with mostly gold fingers and cpus . I use fertilizers ( sodium nitrate , urea ) along with muriatic acid and metabsulfite for dropping . The first year was a learning year and since then have steadily improved in my methods . I have learned quite a bit from this forum by just reading the posts . There are many people here with skills and ingenuity that is very impressive . Thank-you Noxx for getting this thing going . What a wonderful job !!!!