Coralife 05692 Pure-Flo II 50-Gallon Per Day 4 Stage RO/DI System

Outperforming expectations
I have been using this product for 3 weeks. So far, I've made about 100 gallons of RO/DI water for my marine aquarium, and my only regret is not purchasing an DR/DI filter years ago. I just hook it up to my kitchen sink faucet. There was no need for crazy plumbing projects. I am a little bit concerned about the longevity of the filtering system. The initial batch came out at about 8 parts-per-million total-dissolved solids (ppm TDS), but I'm already up to 15 ppm. However, this is still a pretty low TDS, and I might even be contaminating it just by measuring or something, so I'm not too concerned yet. I do have a couple tips that might make your choice-of-purchase or set-up easier.

1) Unless you plan on installing some kind holding tank and auto-shut off, this filter takes time. Remember, 50 gallons per day is only about 2 gallons per hour. If you don't think you have the patience for that, consider upgrading to a higher GPD.

2) I read some reviews of RO filters...
No Pump
I have this RO filter and it works great. It should be noted that the picture (which has actually since been updated) showed, and the description mentions (still does), a pump which this unit DOES NOT have. Amazon, as always, was outstanding in their customer service when I called to advise of the lack of pump as described/pictured. They actually sent me a new one (actually OVERNIGHTED it to me!) and said "if new one still doesn't meet your expectations, we'll issue a refund". I LOVE Amazon!!! The new one arrived (which I promptly returned unopened) also with no pump. Further investigation revealed that Aqueon does make a model with a pump but the one for sale on Amazon is NOT that model. The one with the pump regularly sells at various web sites for $250 and up while this model (76002 I believe?) also regularly sells at various web sites for anywhere from $10-$80 more than what Amazon sells it for. Since the pump-less model is working fine for my needs and due to the fact...
As described
Purchased this item a few months after I had gotten my tank. In just the month since I purchased this machine the fish, corals and invertebrates in my tank seem healthier and happier. The unit itself puts out ample clean water and in around an hour I have the 5-7 gallons I need to do my weekly water change for my 60 gallon tank.

Setup was a breeze and the unit is small enough to allow me to store it under my stationary tub when it's not in use.
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