RO water
- Thread starter willist0
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RO water is reverse osmosis and gets lots of the chemicals out of the water (chloromine/chlorine). It is good to drink. It gets most bad stuff out. However, DI is deionized. That means when you filter through a DI resin, out comes pure H2O. Not good to drink as drinking water needs some of the additives and sediment. DI is what most reef keepers use because then they are starting with straight H2O rather than water that still has trace elements or chemicals included.
For instance, RO water will still give you a TDS (total dissolved solid) reading anywhere from guessing: 30 - 120 depending on your system and environment. However, DI water will give you a TDS reading of 0.
Now, I think that is all pretty accurate to my understanding. Hopefully a water guru can get on and clear up anything I goofed on.
For instance, RO water will still give you a TDS (total dissolved solid) reading anywhere from guessing: 30 - 120 depending on your system and environment. However, DI water will give you a TDS reading of 0.
Now, I think that is all pretty accurate to my understanding. Hopefully a water guru can get on and clear up anything I goofed on.
So RO is reverse osmosis. Osmosis is the process of going from a high concentration area to a low concentration area. Reverse is the opposite, so you put water into the RO unit with lets say 100ppm, you get a lower concentration. The DI is deionizing resin. Some molecules like PO4, and chlorine ions get through the membrane (this is the most important part of the RO system). The DI helps catch it.
You're much better off using RO water over just tap water. RO can lower your TDS(total dissolved solids) to single digits, but the DI resin helps get it to 0.
Check the TDS of the RO store water. You're ultimately going to be much better off buying your own unit.
You're much better off using RO water over just tap water. RO can lower your TDS(total dissolved solids) to single digits, but the DI resin helps get it to 0.
Check the TDS of the RO store water. You're ultimately going to be much better off buying your own unit.
You can use store bought water for top offs. I use distilled water for my Betta fish tanks from Winco. But for my salt water I get RO from my aquarium maintenance company as part of my monthly service charge. Wouldn't want to carry that many jugs into my house lol.
