Anyone know of any places that will do CO2
refills near Beaverton, Oregon? Ideally I'd like a place that will fill my own tank while I wait, but it sounds like those are few and far between... Most places I'm hearing about require you to drop off your tank and wait a day or so to pick it up, or they will only exchange your new shiny tank for one of their beat-up ones...
If no fill-while-you-wait options are available I'll go for the drop-off and wait option I guess, so any suggestions on which places are least expensive and nearby are all welcome