I have a water filter underneath the sink, which filters the cold water that comes out of that sink. That works pretty well, but I can't take much more liberty with the plumbing on that kitchen sink since I live in an apartment. I am planning on moving into my own home in March 2011, so I'll be able to do more there.
Come to think of it, I don't plan on having any corals until after I move, and during that process I'll inevitably do a 100% water change. Do you think there would be any harm in just using the filtered tap water instead of RO
water until then?
Past that, it sounds like I would have more luck hooking it up to the hose out back, which leaves me kind of screwed in the winter since I live in Ohio...