"I kept track of my air but it I was pretty low after about 5 minutes or so."
why is anyone arguing with this statement?
I believe that having rental equipent that is maintained and works properly is not too much to ask for
Absolutely, DB.
Our gear is serviced at the beginning and end of every season. We break it all down. We carry save a dive kits adn an extra set of gear on every boat. I think it is more than reasonable to expect solid functional equipment, as opposed to "this isn't a huge problem, just dive it," equipment....
If you can't give out good working equipment, don't rent it out.
I do not rent equipment unless they are on my boat. I have Zeagle bc's and regs, and also Apeka regs. I like my gear and don't want it out of my sight. this also helps us take care of our gear.
OP, you do have some good advice in this thread. I personally would say buy your own gear. You know it will be taken care of, but until then, shop around and make them hook up gear to a tank before you leave the shop.