I posted a version of this question in another topic, but I'm looking to elaborate a little.
If you unknowingly have metals in your water, and you add chlorine, then depending on the level of metals and your pool surface, you will either get staining or colored water. For now, ignore staining, just focus on colored water. I'm not talking a slight green tinge, I'm talking full blown reddish brown iron-infested water! For reference, our fill water tested today at .4ppm iron (an all time low for us!)
If you add the sequestrant after the water has already changed colors, will it change back to clear? What I'm wanting to know is, has anyone actually done this and see it work? Or for people who know the chemistry behind the different oxidation states of metals (chem geek?), does the chemistry say it will work?
I put in a quart of sequestrant while the pool was filling, but it wasn't enough, obviously. I bought two quarts of Sequa-Sol today, but I don't want to dump them in brown water if it won't work. I see no reason to 'waste' these bottles if it won't do any good, and I have no intention on doing a drain and refill.
As of right now, my options are:
1. The sequestrant will change the water back to clear and everything goes swimmingly.
2. Floc and vac to waste, then add these two bottles as I'm refilling.
I'd really rather go with option 1, but I'd like opinions here from those who have been there, done that, so to speak.