At what point is filling doubles two fills?

[divegeek]

I think the issue is whether the shop is over charging for air in the first place. Some divers think that airfills cost the shop nothing, other than the compressor filter changes. Being in a financial type of business, I know there's more that goes into anything anyone sells. Payroll for the kid filling your tanks, building insurance, electricity to run the compressor, parking lot maintenance if the shop has a leased space, etc. etc. Someone once told me that air fills at dive shops are a loss leader. They make no profit from them.

I'm not trying to start an argument, but frankly, IMHO six or seven bucks to fill a tank when you consider all the fun we have seems like a pittance to me.

Let me get my nomex suit on before anyone replies, please.

ChirsH I also see your point. charging by the cu.ft. does have merit.