posted on Sep, 13 2011 @ 07:29 PM
I have a commercial multi-stage filtration system that includes a reverse osmosis stage.
The water is, and always has been beautiful & clean, without any metallic, alkaline or chemical tastes, ever.
The system we have automatically flushes the filters every 24 hours and so it tends to maintain itself, with the water filter support company
replacing individual filters every few years & verifying the system every twice yearly.
The caveat is that it IS an expensive system.