IHC Hydrohammer: The IHC Waterhammer®

The IHC Waterhammer® was developed by IHC Hydrohammer® for use in ultra deep water. It is controlled by a radical hydraulic system that uses sea water instead of oil. This addresses the practical issue of it being technically very hard to pump oil to and from such depths, while of course there is no shortage of sea water around the structure. There are also environmental benefits in that this solution removes the risk of accidental oil leaks.
Over the next few decades, the IHC Waterhammer® will add a complete new dimension to technology and safety in the field of underwater pile driving.

[@firstmaje2271]

I don't know if there is a real advantage here. There isn't much oil to be leak and bring the pump with the hammer is more ifactive.