I do not have a speedstir. Thank You...I am attaching a link to the water photos...maybe it is the chlorine working...killing whatever is in the water and not so much of the iron. https://www.dropbox.com/sh/74hu4ykt9...JS3wehpMa?dl=0 I know that we have had metal problems in the past and some of it might be metal. We fill with municipal and we have had quite a bit of rain lately. I will recheck tonight and again in the morning. I will also try to be very careful in how I test with the drops to make sure I am doing it correct. Thanks and will post again in the morning.