RO or DI?

[stumpdog]

My LFS has both RO and DI, which one should I get? I went with RO for the initial fill, what about the top offs? I know some of you say tap is okay, but I prefer to stay away from that.
Thanks-
Jeremy

 

[aileena]

Ya I cannot understand this new tapwater fad? go figure?
anyway, I would probably use which ever one was cheaper...distilled water is DI I think? Either way both are pretty good water sources for top offs...

 

[reefnut]

I'm kinda confused why they would have RO & DI and not RO & RODI. If that makes any sense. I think the RO process takes out more of the impurities than just a DI would. It goes with out saying but RODI water is the purest.
Distilled water and DI water are to completely different processes.

 

[gregvabch]

i'll never use tap water again. don't know why anyone would say that it's ok to use. you CAN use it, but RO/DI is so much better. i don't understand why your lfs doesn't have RO/DI water, just one or the other. maybe you could ask them to deionize some of their RO water for you???

 

[stumpdog]

I know it is wierd. They have RO and DI but not a mix. I don't like the store that much, they can be real jerks sometimes.
Thanks-
Jeremy

 

[madd catt]

Distilled water comes from a distiller which works in diffrent manner than ro/di unit. rainwater is distilled water.
Also there was somthing on the ro/di faqs on reef central that stated ro is good drinking water but not di.

 

[nacl-man]

My first tank was setup using tap water. It was a mess.... Ro/Di was the best money I ever spent.
Well on the tank at least.
Cheers!

 

[cb]

The water I have been buying from the lfs says DI on the front of the tank is there a problem with using just that for your tank?

 

[tangman99]

I've never heard of just DI water, but the closest I can think of would be water ran through the Tap Water Purifier. It has a small carbon section and Deionizing resin. I used one for 3 years and it worked just fine, but was very expensive to use as the cartridges only made about 50 gallons and cost $20.00 each.