I just had an 80 CU FT Oxygen tank fail recertification (a bubble someplace near the threaded area when pressurized to 10,000 PSI). So, I'm out $200+ bucks for a new tank.
On the plus side, I have a tank that can be messed with. Anyone know what bore size I will find inside an 80 C.F. tank ? Way too small I'm sure for bowling balls, guessing 3-4 inches... no idea for sure.
Are they smooth and straight inside, or would it have to be machined to true the walls up?
Also, can I cut it with a chop saw, or is a more exotic method required?