The stuff you used to "get the iron out" doesn't actually get it out--it is a sequestrant that keeps chlorine from causing the iron to precipitate out of the water and stain your pool.

It would help us to tell you what to do if we had more accurate numbers--the ones you've listed here are a little vague. Are you using strips or a drop-based test? You need drop-based for accurate testing. Assuming your numbers are correct (and that's a BIG assumption at this point), for CYA of 20, your Cl is okay. Your pH and alk are high. Look at the sticky at the top of the alkalinity forum for lowering alk--and it will take care of the pH problem in the process.

Janet