"Process that serves to remove all ionized substances from a solution. Most commonly is the exchange process where cations and anions are removed independently of each other."
the process is to remove charged ionic particals from water..
is a super fine filter that forces almost everything out of the water..
is more effective but if it's just for SW
wich its not by the way then why is it the last stage of the RO
? I was assuming it removes medals since they would be have a ionic charge..
as I said before.. you can get RO
system on ebay for a little more and have the real deal..