Quote:
Originally Posted by
SnakeBlitz33 http:///t/396468/advice-on-new-setup#post_3532630
Flower, you shouldn't believe everything you read. I have been drinking RO/DI water for years, as well as many of the citizens in my local area. We have a water store down the street that sells 0TDS water, which is water that has been polished by a large Kati/Ani deionizer. In fact, in order for the man to make money selling water, it is regulated by the state how high his TDS can rise before he needs to change his filters. DI water is just a resin that exchanges ions with whatever TDS is left in the water after the RO membrane. An RO membrane, depending on what membrane you are using, has anywhere between a 90% and a 98% rejection rate - which means that you do not totally eliminate all the TDS in the water. Being in reefkeeping, it is essential to use only 0TDS water or else you risk a whole array of chemicals getting into your system.
Now, since I have been drinking RO/DI unit for close to eight years, I have absolutely no major health problems. I have not melted from the inside nor is it like pouring battery acid down my throat. I'm sure there are people on this board that also drink their RO/DI water out of their units as well - and telling new hobbyists about something that you read that you can not find a legitimate scientific article about is... not being a good mentor. Furthermore, there are additional filters that a person can add after the fact, like the "taste and odor" filter that makes RO/DI water taste great after it comes out of the unit.
Now, what you might be thinking about is the experiment done in school where you put an animal cell in a hypo-osmotic environment and it pops because the solutes leave the cell to try to maintain homeostasis... In this case, sure - BUT, our bodies are not made of single cells, and once you drink it, it mixes with your bodies environment and is used - it does not cause cell death on a macro level.
Now, provide me a scientific article - one with a legitimate scientific source and not opinion - and I will reconsider. However, I also know that I have been drinking it for eight years without any harm, so it better be a dang good source.
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Also, RO membranes DO NOT remove all the TDS in the water, remember me talking about rejection rates? Lets say you have a TDS of 100 going into your unit... a rejection rate of 90% on most 100gpd filters will reject all but 10 TDS. Which means that if you are only using an RO Unit, you will not be removing 10ppm TDS of something in your water. Could be nitrates, phosphates, heavy metals, chemicals, chlorine, chloramine, ammonia, floride, sulfides, medications.... Since in our aquariums we are striving to limit nutrients to only what we introduce as food,... allowing 10ppm TDS of anything extra to get into the tank over time can cause more harm than good.
I read it here on the site first, from one of our "professors" (those I consider smart guys, like yourself) I don't remember who...but there was an article and everything. I guess since your insides haven't melted...LOL... But if you do notice your cells exploding, be sure to let us know.
On a more serious note..................
Here is a site where the subject is battled out...so I'm not completely crazy, admittedly there are pro's and con's on it's use...
http://www.finishing.com/110/17.shtml">http://www.finishing.com/110/17.shtml
Here is the E-how site:
http://www.ehow.com/about_6717686_deionized-water-dangerous-drink_.html
Our fish tanks benefit from RO/DI water because we replace what elements we want in the tank with our salt mix and additives. From what I have read on the subject, the DI water is too pure to be of any use for consumption. However we also make up for what is no longer in the water, from the food we eat and other beverages, which if I understand the articles, as long as you consume enough of the other stuff to make up what minerals are lacking, you shouldn't have a problem. It may not kill you, but deionized water is not good for you to drink.