Wow. In the US, lots of grocery stores have a refill station where you can bring your own jugs and fill them up with filtered drinking water. The ones at Whole Foods also have a de-ionized spout and it sells for the same price as the filtered water, $.40/gal.
I mix all my chemicals with de-ionized because I can get it so easily and cheaply, and I figure the consistency eliminates one more variable from a process that I can all too easily screw up.
Last edited by pbromaghin; 07-30-2012 at 12:36 PM. Click to view previous post history.