R/O versus R/O-D/I

[Mojo423]

I’m currently using a r/o unit to make my water and my tds are at 6. What is the difference between a r/o and a r/o-d/i unit?

 

[Orion1885]

ro/di should produce water with close to zero tds/undetectable levels.

 

[Hitman]

Ro/di water will give you 0 TDS. The DI = De-ionized
You can add a DI stage to most RO systems.
I personally would not be putting 6 TDS in my tank as lord only knows what the remaining 6 TDS is.

 

[Mojo423]

Ro/di water will give you 0 TDS. The DI = De-ionized
You can add a DI stage to most RO systems.
I personally would not be putting 6 TDS in my tank as lord only knows what the remaining 6 TDS is.

Thanks for the info. Are all d/I units the same or are some better than others?

 

[Hitman]

Personally they are all similar. I like the BRS one that comes with color changing media. This is what I had before I stepped up to their 7 stage pro setup.

https://www.bulkreefsupply.com/single-deionization-canister.html

 

[Mojo423]

Personally they are all similar. I like the BRS one that comes with color changing media. This is what I had before I stepped up to their 7 stage pro setup.

https://www.bulkreefsupply.com/single-deionization-canister.html

Thanks for the feedback Hitman, I appreciate it!

 

[Hitman]

Anytime! Glad I was able to help.

 

[cromag27 Verified Sponsor]

rodi units are somewhat similar but the filters make the difference. here is one of the most popular units for our hobby. i wouldn’t anything but spectrapure.

https://spectrapure.com/RO-RODI/RODI-SYSTEMS/MaxCap-Standard-90-GPD-RO-DI-System

 

[Tamberav]

Be sure to T off your RO water so you can still make RO for drinking and RODI for your tank. 0 TDS water doesn't taste very good and some people say it is unhealthy for you (not sure about that).