Has anyone used the Watts wp 5-50 (five stage- fifty gallons per day) Ro unit? Do all RO units take out phosphates or does it say. This model did not say phosphates but it did say nitrites and nitrates. It is going for $240. ALso, is there a difference bewteen RO and RO/DI? Any help/advice appreciated, I'm getting ready to setup my 120 SPS (pics soon) and I want a really good Ro unit.
Chris
Chris



