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Discussion Starter #1
I am looking to buy an RO/DI unit but really only for water changes on my 20g. That being said, can anyone recommend a cheap RO/DI unit for me? I am not looking to spend a great deal of money but I do realize that these things aren't usually cheap. I have been afraid to buy one of the portable ones off ebay and wasn't sure if they worked that well at getting a near 0 TDS. Thanks in advance!
 

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Another option, might be your local grocery store.
Mine sells RO water for 59 cents a gallon, bring your own container.
Our LFS store sells RO water as also, but that's a long drive.
That may or may not be cheaper than purchasing a unit and replacement bits after a couple of years.

Since you won't want to be doing water changes with pure RO water, you'll only be using one to three gallons per change.
 

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Discussion Starter #3
I have thought about it, but when I looked at the containers (i dont have any) they were about 10 bucks a piece. After I buy 2 I have already spent 20 dollars and I might as well just wait a little bit and get a system I can use for my tank(s) and some drinking water if I desire
 
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