When you say "potassium based" R/O, that implies a water softener using potassium chloride on the whole house water supply and an R/O on the kitchen sink, perhaps?? Yes, R/O systems take everything out - leave you with pure water and no dissolved solids. My dad has an R/O but only on the kitchen sink. To do a R/O for the entire house would cost a small fortune which is why they are typically only done for the kitchen sink. My dad's setup is pretty nice - probably a lot like yours??? Carbon filter to remove chlorine, water softener to remove hardness, and R/O on the kitchen sink - for cooking, coffee. Unfortunately they don't have the refrig water supply off of the R/O system - too hard to run the pipe to the refrig with a slab ranch.
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Originally Posted by dbussone
All I'll say, without naming a brand, is that we have a potassium based R/O unit no scale buildup, no heavy metals in the water, and several jealous neighbors. Anyone with a neurological condition especially need to be sure they are eliminating heavy metals from their water supply.
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