Last year I closed my pool with iron stains. When I opened it they were gone. So I would see if they are gone first. Then I would kill the pink bacteria first if you still have it by overloading chlorine. Once you are sure that the pink algae is gone - then you can work on the iron stains - because you can't keep a high level of chlorine when you are battling iron stains. I would do the bacteria first before I worried about anything else. Once that is gone, then you can lower your chlorine, do the stain treatment, then balance the water. You should be good to go - if you open to no iron stains, you may just have to deal with the algae, if you do - make sure you put in metal free before you do anything else. Keep your filter running 24/7 till you are sure all is clear.

Marie