Quote Originally Posted by mbar
That is really rotten! I would try lowering the ph down to 7, and add the sequesterant first - sometimes you can lift the stain off this way, if it doesn't come off you can then to the ascorbic acid routine. You didn't get pool stored, you just got tricked because there was no mention of anything on the bag but salt.
Yes, but I usually don't buy my salt at the pool store! Not even at the one I work at because I can get salt much cheaper at the grocery store! Gonna pick up a few bottles of Purple Stuff or Metal Magic tomorrow at work and take it from there.
Already got my pH down to 7.2 in anticipation of it! Gonna test with a vitamin c first just to make sure it's iron.