[mike31154]

To the best of my knowledge, RO systems rated for chloramine simply incorporate two carbon stages. I've only skimmed through the linked articles briefly, but my own system came with two carbon stages & was rated for chloramine removal because of that. When I found out Greater Vernon uses chlorine, I removed the activated carbon stage & added another poly pre filter in its place. So now I have a 5 micron poly, a 1 micron poly, 0.5 micron carbon block 'chlorine guzzler', RO membrane & finally DI. Been running for close to 3 years, DI is still good, membrane still good. Only thing I've ever replaced is the first stage 5 micron poly. Tap water TDS is 210-220.