Re: 2 stage vs. reverse osmosis?



Correct. Imagine the membrane as a balloon around which water is run. As
you said only the pure water molecules can get through the skin of the
membrane and thus shuttled to the holding tank. Seems the ratio is 25
gallons of water down the drain for every one gallon to the tank. Used to

There is no "THE" ratio, it varies according to the design of the RO
system. Mine is (according to the installer) about 2 gallons
flushed for every one purified. They had a high end model that was
supposed to approach 1:1, but I don't have any need for that, where
I am, given that getting rid of water is more of a problem than
finding it.

As for UV "Filters", they don't remove anything from the water.
They irratiate it with UV light, and any organism that can't
withstand that amount of radiation croaks, while any organism
that can, happily breeds deeper in your water system, feeding
off the corpses of it's dead brethren.
.

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