I tried that. Most places won't fill, but the ones that do are quoting me about $150 for a filled 5lb tank and offer an exchange for $28.
These prices seem pretty far off from those I see discussed on this forum.
I'm in the Geneva area and am looking to put together my first carbonation system. It would be great to have a list of area shops that fill and/or sell tanks. I'm looking at a 5lb tank right now.
Thanks!