Best Dairy-Free Shortening. Shortening is an even fattier form of butter. Where butter is made with about 85 percent fat and 15 percent water, shortening is 100 percent fat. For those who can't tolerate lactose, there is a dairy free version of this ultra rich spread.
For example, the standard aluminum 80-cubic-foot tank weighs about 35 pounds, while similar capacity steel tanks weigh in at about 30 pounds. There have been lengthy discussions about the service life of steel tanks vs. aluminum tanks.
All tanks were gassed up, and the gear was exactly as it would be if I were to throw it on and go diving. Here are the results. Technical 108 lb. = Double Steel 98's, Bladder, Stainless Steel Backplate 28 lb. = Steel 46 Stage Bottle, Regulator 8 lb. = V-Weight 22 lb. = Drysuit, Underwear, Hood, Gloves, Mask, Fins 9 lb. = Primary Regulator, Backup Regulator, Gauges 9 lb. = HID Canister Light 6 lb. = Knife, Shears, Lift Bag, Reel, Computer, Compass, Backup Lights Total, One stage bottle (130'-170') = 190 lb.