<a href=showthread.php?s=&postid=11642323#post11642323 target=_blank>Originally posted</a> by Randy Holmes-Farley
This is to remove it from fresh water?
I'd be careful, as those will really only remove dissolved ions, and not particulates. Those who do use RO/DI often get a ton of crap clogging their sediment filters, and those are probably mostly metal-containing solids (like iron). While iron itself is not a problem, they may contain other metals as well that might dissolve in the tank.