Um, isn't that actually a NINE stage David? I don't think it's crazy at all. Have you seen what the whole house RO systems cost?!
I ran 6 stage in cluding dual DI when I had the big tank. IME dual DI is super important.
VERY NICE...always smart to tie it in to "better healthy drinking water too" 
How much would that setup be without the pump and JUST one RO filter?
Todd
Last edited by TexasTodd; Sun, 15th Feb 2009 at 08:44 AM.
Killed my first coral in 1991, have tried to do better since. Always tricky.