Can I make rodi water without an rodi system?

[Porcupine Reefer]

Is it possible if I can make rodi water and not use an rodi system to possibly cut costs?

 

[IceNein]

No, I don't think you can. RODI water specifically refers to water run through an RODI system. There are other ways of making pure water. Distilling units and evaporators, which are basically the same thing. Boil off water and recondense it, all the impurities stay behind when you evaporate it.

If you have a nano tank, you can just buy distilled water from your grocery store. If you have a larger tank, you should definitely invest in an RODI.

 

[ChiCity]

sure… jesus turned water into wine.
so why not

 

[redfishbluefish]

I don't think they're around anymore, but not too long ago the other option of making purified water was the KatiAni system. It was more or less the "DI" portion of an RODI system with the two individual resins in their own canisters.....and much larger than the DI canisters. Once you exhausted the resin, you'd run either NaOH or HCl through the resin to recharge it. You might be able to find one floating around. I only knew of one local reefer who use to make his water this way.

 

[BryanM]

Technically I think you can make distilled water at home, but I do not think I would trust it to be 100% for reefing.

 

[Randy Holmes-Farley Verified Community Expert]

Pure di is fine, as redfish notes, but is more expensive than ro/di in the long run.

 

[C_AWOL]

Should be possible with straight Di/distillation(glass container) but those options will cost way more than a small rodi system in a very short time

 

[braaap]

I’ve seen it all now. :face-with-tears-of-joy:

 

[p1u5h13r4m24]

 

[Don’t fear the reefer]

Distilled water is not as pure as RO/DI. Distillation only separates out heavier minerals. You cannot boil off all the ions and lighter minerals. In a pinch, for topping off, you can get away with using distilled from the grocer. But I would not use distilled for mixing saltwater.

 

[RocketEngineer]

Is it possible if I can make rodi water and not use an rodi system to possibly cut costs?

I have a thought that might change how to consider what’s worth the cost vs what isn’t. For a saltwater system, you’re maintaining water because fish breath water like you and I breath air. If there’s a bunch of gunk in the water, it’s like breathing in smog. We aren’t keeping fish and corals, we are maintaining good water quality so the creatures can thrive.

HTH

 

[slingfox]

An RODI system is one of the best purchases a reefer can make. Water quality is not a place to cut corners.

 

[Buckeye Hydro Verified Sponsor]

I don't think they're around anymore, but not too long ago the other option of making purified water was the KatiAni system. It was more or less the "DI" portion of an RODI system with the two individual resins in their own canisters.....and much larger than the DI canisters. Once you exhausted the resin, you'd run either NaOH or HCl through the resin to recharge it. You might be able to find one floating around. I only knew of one local reefer who use to make his water this way.

There was nothing special about these systems, although they were marketed as if they were "high tech." You can do the same with a cation cartridge followed by an anion cartridge. Remember that there are four common cartridge sizes, and the housings into which the cartridges are placed. The cartridge sizes are (nominal dimensions):
10" x 2.5"
20" x 2.5"
10" x 4.5"
20" x 4.5"

 

[Randy Holmes-Farley Verified Community Expert]

Distilled water is not as pure as RO/DI. Distillation only separates out heavier minerals. You cannot boil off all the ions and lighter minerals.

Not sure what you are claiming, but there are no ions or minerals getting into properly distilled water except CO2 from the air reforming bicarbonate and carbonate.