RODI System Recommendations and Considerations (and which ones not to buy)

[NanoCrazed]

You’re running your 3 ro membrane in series, what’s your filter vs waste water ration? I just wonder how much it saves water vs 2 membranes?

0.75G waste to 1G product... Definitely need a booster to make this work. I have mine set at 85 psi based on the membranes I use.

 

[fredy666]

if you want less waste and faster fills, go for a 5‑stage RODI with a booster pump and auto‑shutoff valve. More stages (6‑7) usually just add remin‑ or UV modules you don’t really need for reef water. Both AirWaterIce and AquaFX are solid, just compare their warranties and how easy it is to swap membranes.