to remove iron you would have to add sodium hypo (bleach) (allow it to sit for 10-30 minutes of contact time) to precipitate out the iron, then, run the water through a filter, to remove the precipitate, then run the water through a carbon filter to remove the chlorine.
lot of work if you ask me. I would just buy RO/distilled water.
~"A fine beer may be judged with only one sip, but it's better to be thoroughly sure.
On Deck: Spruce APA, Chambord Fortified Chocolate Porter, Imperial IPA
Secondary: Belgian Dark Strong Ale
Kegged/Drinking: Cascade, Cent., Amarillo Pale Ale
Kegged/Drinking: Belgian Pale Ale (HG yeast for yeast cropping see above)