i've worked @ both bearspaw and glenmore WT plants (electrician) and WOW i must say i was very shocked......... :|

i guess i just always thought wt plants would be alot more modern and "clean" lol..

Calgary's WTP's are the same as Red Deer's and Edmontons....they are all modern and all pretty much equal using the latest technology from the treatment process to the latest instrumentation. So not sure what you mean by modern?

a secondary benefit to RO/DI (but a VERY good one) is that prime and other water conditioners can make your skimmer go NUTS. My euroreef went absolutely crazy!