sharpenu:You can purchase a small compressor for a little less than $3K. It comes with the break in oil (first 12 hours) and the second set of oil. It has a 5 hp electric motor, which costs about 50 cents an hour in electricity to run. The ad says it can fill 3-AL80's an hour. Just during the break in period, you get 36 fills while spending $6 on electricity.
Other than the initial cost of the compressor, it is cheap to fill yourself. If you, and say three of your diving friends chip in $800 apiece, you can buy and run this thing through about 2,000 fills. That works out to about $1.50 a fill.
I don't think as an LDS owner that you can justify charging $600 for a BC that can be had from LP for $375 and then expect me to pay those kinds of mark ups while kissing your ring in thanks because you are overcharging me for air, as well.
If the LDS doesn't fix their business model, they will go away and I will pump my own air.
Any shop that has a 3000 buck compressor that can charge 3 tanks an hour would never be able to supply anyone with airfills.
Let's say they've have a class of 6, an instructor and a DM. That's 16 tanks. They'd have to run the compressor for 5 hours just to fill those tanks. They wouldn't have time to fill any rental tanks. If they had no classes going, it would still take ALL day just to fill tanks for 8-10 rental customers.
Most shops that I've seen have 10-20K at a minimum into their compressors unless they are lucky to find a decent compressor from some other shop that went out of business.
Even if they somehow make 2 bucks a fill, that'd take a heck of a lot of fills to recover their initial expenses. The shop I used to visit back in Oregon MAY have rented or filled 25-40 customer tanks a week. At 50-80 bucks a week to pay off their compressor, not to mention employees, I'm sure their compressor was a HUGE money maker - NOT.
I worked for a busy shop in Hawaii, part of my duties was filling tanks. 26,000 buck compressor, and they still probably only filled maybe 15-40 private tanks or rental tanks in a day. The rest all went for their charters so they don't really count. Their compressor probably broke down 3 times a year. Cost a bunch of money to maintain. You think they raked in profits off their compressors?
There's a lot more to the cost of an airfill than people think.
later,