Mold and Mildew Test

The discoloration on the tap water only and distilled water only has not worsened. And the addition of 3% hydrogen peroxide to these samples recently has not reversed the discoloration. The rubbing alcohol samples have about the sample discoloration as reported previously - not noticeably worse. The original distilled water samples with 3% hydrogen peroxide added still look as clean as at beginning of testing on Feb 3rd. The tap water sample containing the copper penny shows no change at Day 4.