API DI filtration unit?

[anpetey]

Hello all,
So I just recently stumbled upon this filter and was wondering if anyone had any input on it?

http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+4395+4484&pcatid=4484&s=lh

I am using dechlorinated tap water in my tanks because mostly, so far *knock on wood* I have not had any issues, and my tap water seems to be okay, while I know this is not good in the long term, It's all I have for right now (I have to do a lot of top off on my tank as it is not covered yet, and I can't afford to buy that much water, roughly a gallon a day). I have been looking into RI/DO units but they are all very expensive, so when I happened to see this little filter I figured it might be good to see if anyone has any opinions on it. It is only a DO units NOT an RI unit. Is this still enough to get the job done? I really cannot afford to buy a RI/DO unit at the moment but maybe if this is okay, I can use it until I can buy an RI/DO unit.
Any opinions?
Thanks!

 

[b_s_c1]

The problem I see with this is that the DI will exhaust very quickly. With a RO/DI the water is ran through a sediment filter, then carbon blocks and into a the RO membrain. With all this prefiltering the DI still has to work to bring the tds to 0ppm. If I am seeing the price correctly from you link the filter and the canister cost 62 dollars with replacement filters running 40 something. A four stage RODI from BRS will cost around 100 dollars and will provide longer service. This is just my two cents but I would wait until I got a little more cash and by a RODI.

 

[disc1]

^^^ Agree ^^^

Over the course of a year, this will end up costing more than a decent RODI. It's better than tap, but not nearly as good as RODI.