Water

This is the drilling process....Right now it is "blowing" air pressure down the hole to blowout the water. This is done to clear the hole of any mud, rock, etc.
This is a close-up. If you are not very careful you WILL get covered by this being blowed out of the hole!!! That is why I stood back and zoomed my camera!!!

WARNING: This is a dirty job...but someone has to do it!!!