Orange stained pool surfaces can DEFINITELY make pool water look green.

But, whichever Stain Free you have -- if it's lifting the stains and putting them back into the water, that is an IDEAL situation while you using cal hypo. The calcium on the filter will tend to recollect the stains onto the calcium dust that you will then be backwashing out.

So, use it up; maintain chlorine with cal hypo, and run your filter 24/7, till you are all cleaned up . . . and then for 3 or 4 more days.