...so my Dept. charges $5.00 for a scuba fill, IF the duty Captain permits the fill ( depends on whats going on at the moment; ie: training, lunch, big problems @ the nuke plant... ). Such fills are irregular, as the City's policy is to not have it's member departments taking business away from tax-paying shopkeepers, & that includes the dive stores.
Since I look after our air, I can tell you it's top-of-the-line, tested every 6 months, dry as a popcorn fart, far below min. ppm's for every category & real tasty too! I've quaffed our air in the abyss where temps. hover around -273 degrees kelvin without a HINT of trouble!
Honest!
Best,
D.S.D.