View Full Version : Old LP 72 buoyancy specs

10-15-2007, 22:00
I picked up a few old steel 72s a while back for local quarry diving and have been trying to find specs on their buoyancy characteristics. I use the same amount of weight as for diving my HP80 but it would be nice to see some real numbers. They are PST (Dacor) tanks and are older then I am (original hydro in the 70s).

12-12-2007, 16:14
Most are 5 pounds negative full and zero to 1 pound positive empty. They are the only tanks I have used for the last 50 years so I know them well.