On Apr 4, 9:41*am, Elmo dcdraftwo...@Use-Author-Supplied-
Address.invalid wrote:
On Sat, 03 Apr 2010 21:22:39 -0700, Jeff Liebermann wrote:
Some maniacs have gone to 100 PSI and up by reinforcing the
bottle with duct tape, but methinks 50 PSI is a good safe limit.

(snip)

I remember reading somewhere they test automotive tires by filling them to
200 psi of water to see if they'll blow (the water apparently lessens the
danger).

(snip)

Yes, there's no danger because, being incompressible, it does not
store energy like a pressurized gas. The only stored energy with
water pressurization is strain energy in the vessel, usually quite
small. If the vessel ruptures the pressure instantly goes to zero and
the water just runs out.
Cheers,
Roger