Something a little different:
Though it may be awhile (and a little impractical) to try to load this stuff into a water blaster, scientists seem to have determined a new state for ice. Granted, they used some lasers and diamonds to compress water ice VII even more.
From the Nature Physics article: “Using time-resolved optical pyrometry and laser velocimetry measurements as well as supporting density functional theory–molecular dynamics (DFT-MD) simulations, we document the shock equation of state of H2O to unprecedented extreme conditions and unravel thermodynamic signatures showing that ice melts near 5,000K at 190 GPa.”
To think steel melts at ~1,650K and here we are talking about water, but under some serious pressure.
Granted, with that heat and pressure, not sure one would want to be hit by it.