Last year, my copper was near the top of the chart on my copper test kit - at about .8.. No matter what I did or used, or how much water I drained and refilled, it remained at .8.
I used a metal sequestering stain preventative last week, and my copper measures only .1 last night.
Is it really possible that it could have become so much lower so quickly? Would the metal stain treatment have something to do with it?
Whatever the reason, it's great news!