Iron In My Water

[BigDave]

If you're not trying to reduce TA, you can just add Borax to raise pH. Be careful, raising the pH can make the metal come out of solution.

The HEDP keeps metals in solution but doesn't remove them. CuLater packets seem to remove metals slowly. PoolDoc has been recommending an approach to metal removal that involves encouraging the metal to come out of solution onto the filter by putting cal-hypo tabs in the skimmer, creating a high chlorine, high pH area before the filter. He's away for a while but is you search others iron in water threads you might be able to get the idea.

[FormerBromineUser]

PoolDoc had me use this process and I am now metal-free. The only difference was that I used cal-hypo in granular form. Worked a treat!