New Pool Owner With High Iron

[aylad]

Your pH drop was more than likely just the trichlor. Take it out, and get some Borax in the pool to get the pH back up. This is a priority, since pH below 7.0 can damage your pool, and if your test reads 6.8, it could actually be lower. I'd start with about 3 cups added slowly through the skimmer, breaking up the clumps as you go. Wait 1-2 hours and test again, adding more as necessary. Stop at 7.2-7.4. One of the keys to dealing with metals in the water is to keep the pH on the very low side, but not less than 7.0.

You're obviously not going to need the baking soda this year--it's used to raise alk, and yours is high enough already!

and yes, try about 1 cup of bleach in the bucket of water and check to see if you see staining. If you do, then make sure your pH is at 7.0-7.2, then add more sequestrant until you see the stain lift. AT that point, you should be able to slowly raise your Cl. (Reference the latter part of Marie's post in this link http://www.poolforum.com/pf2/showthread.php?t=7923

Janet