Quote:
Originally Posted by CM125
Hopefully someone else from Calgary chimes in, but I have heard Calgary is one of the best water sources in the country.
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It's good water, but lots of minerals. Most people there report really high TDS.
However, the point of RO is consistency and insurance. There's always the possibility of something getting into the water mains and wiping out your collection of corals. Until then, you're probably fine running tap water. Mostly. Lots do without tank implosions. For me, it's worth the extra peace of mind.