Compact III 5 Stage

I got this for the office to use instead of bottled water. I have one at home (different manuf. but almost same setup) so I know I like the water much better than the tap, or even most bottled water. The installation instructions were a bit skimpy, but if you've done pumbing before and understand the idea of how the 6 filters of this RO systen works, it will not be a problem for you. I actually have an additional whole house filter and water softener, at the water main, before the water gets to my RO system.

In case you don't know the sequence of filtration, here it is: First, the water goes through 3 pre-filters (the clear tubes you see in the picture), then through the Reverse Osmosis filter membrane (above the pre-filters), then through an optional post-filter (to remove any remaining desolved solids), then finally through an activated Charcol filter (to remove any remaining taste/odors in the water), before it is stored in the tank. The tank pressure is very good. It will fill your glass of water in 5-10 sec. (about 2-3 times longer than tap water at full).

I was very surprised how fast this one makes water (a full tank in about 2 hours). Mine at home takes at least 4 times as long. Beware that this system does not include a dispensing faucet, but I got one from the same company with a phone call. I was surprised that the faucet was not included, but they explained that many of their customers use this system to filter water for their fish tank. Ah Hah!

One last thing, almost all RO systems waste a lot of water. Like around 7 gallon for each gallon you actually filter and store. Now that sounds like a lot, but think about how many gallons you actually will use daily, and then you will realize you waste more just flushing the toilet every day! Maybe you will be clever enough to store the post-filter water in a holding tank and use it for watering, washing, cleaning, etc. This water is not dirty water, it just has a higher concentration of desolved solids.

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