MJo

I think I messed up the order of chemicals. I filled my hot tub with our well water. Then I tried balancing the ph/alc levels. Thought I had it. Then added the recommended amt of Metal Magic (high iron content well) and the water turned very brown. Now, I retested and had hi concentration levels of ph/alc. I added ph down. Water is still brown. Waited a while (probably not long enough) and added more metal magic. It’s still brown and now foamy. I’m in a slight panic. I need advice, please