I notice you're in Vancouver, not sure which water shed you're fed from but I'm in the Coquitlam area and our water is pretty good (still not as good as RO/DI). You can pick up a system from eBay pretty cheap if you want, but with the water meters being installed, it may be pretty costly. Some systems use 3 to 4 times the water to make a gallon of RO/DI.
My buddy uses a simple carbon block and DI resin in series with good results and doesn't waste any water.
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