7 stage RODI setup assistance

[Reef Trak]

Hey gang,

Let’s say that I somehow ended up with a 7 stage RODI filter, (don’t ask ). What is the correct order of filters? I’m going to have the last 3 be resin. Cation, Anion and mixed. What order should first 3 be?

 

[Naekuh]

1 - > Sediment
2 - > GAC
3 - > ACB / CTO
4 - > RO Membrane
5 -> If for drinking water - > Post Carbon (if not, then you can ignore and go straight to DI Resins )

 

[Cichlid Dad]

Sediment
Carbon block
Carbon block
Ro membrane connected to the di resin

 

[rtparty]

What dad of the cichlid gang said

 

[Reef Trak]

Thank you! Only minor hitch in my giddyup is the bottom set has 2 opaque canisters. They are similar to the top ones but not exact size. I won’t be able to see Cation and Anion resins. The company makes them but costs $60 a piece which is almost the cost of that while unit. I’ll see if I can find some

 

[rtparty]

Thank you! Only minor hitch in my giddyup is the bottom set has 2 opaque canisters. They are similar to the top ones but not exact size. I won’t be able to see Cation and Anion resins. The company makes them but costs $60 a piece which is almost the cost of that while unit. I’ll see if I can find some

They’re likely a standard canister and can be found on BRS or Amazon for less than that

 

[Reef Trak]

I found a pair for 25 same manufacturer.

 

[GlassMunky]

I would go
Sediment filter - 5 micron carbon block - 1 micron carbon block - Ro -DI