If I show up with a CO2 tank will they fill it for me? And if so about how much for 5 pounds? Thank you

I don't know why don't you call him

I do as well apologize for I don't know if Dick,s sport does, but probably local scuba shops do or know of a place.

Nope. Go to Gulfport dive shop for a fill.

Sorry can't help you with this. I'd give them a call

Dicks doesn't offer this service

I've never known about this service. You may want to give the store a ring.