Opinions on RO/DI systems

Myka · #1 01-23-2008, 03:35 AM

Depends what your tap water is like. My tap water has a tds of 92, and the water coming out of my RO is 1 ppm, so my DI cartridge doesn't have to work very hard at all.

I think each DI cartridge can only filter up to 40 ppm, so if your water after going through RO is higher than 40, then you'll need additional DI. I am not so sure I am correct on that though...

DanG · #2 01-23-2008, 04:28 AM

I've got an aquasafe that I'm very happy with. I've had it for just over 2 years now and it's working great. Takes my 75ppm tap water and knocks it down to 0 ppm.
I bought the maximus kit that came with a case of filters, enough to change them 7 times, so at that rate, it should be good for 14 years at my current usage.

Borderjumper · #3 01-23-2008, 04:38 AM

Almost word for word what Dan said. I have had it for over a couple of years and use the heck out of it. Love it!

Floop70 · #4 01-23-2008, 05:05 AM

I picked up a Coralife Pure-Flo unit 3 or 4 weeks ago. So far I like it OK... although this is my first RO/DI unit of any type so I don't have anything to compare it to. Tap water going in is around 250 ppm and the water I got from the filter today read 0 ppm on the TDS meter.

Bruce

KennyKen · #5 01-23-2008, 05:07 AM

i use an AQUA FX for a 28 gallon, and it does the trick. got it from J&L for 145 bones and it brings me 245ppm down to 1.
good for a small job

christyf5 · #6 01-23-2008, 05:09 AM

I've got an aquasafe unit, I think I bought it in 2003 or thereabouts. Changed the RO on it for the first time last year (I don't know whether it needed it or not, but I did it anyways). I change out the filters about every 6 months or when I remember. DI probly gets changed yearly on it, although I bought one of those see through canisters that has the color changing resin so now I'll change it when it turns orange.

Der_Iron_Chef · #7 01-23-2008, 05:19 AM

I also have an Aquasafe unit that I'm quite happy with. As long as I flush the RO membrane monthly (or so), I get regular TDS readings of 0.

kwirky · #8 01-25-2008, 06:34 PM

I'm running an AquaFX from J&L. my TDS meter doesn't go higher than the 999 it reads off my tapwater. I paid extra for the backflush thingy which I think has probably made a difference. I have 40g rubbermaid trash bin I use for my RO/DI water and I wait till it's empty before filling it up again. Heard turning your RO/DI on and off shortens the life of the membrane.