ok there a water cooled head on this blaster (link below) you might have to sign up. but any way. theres a water cooled head and its not hooked up to the nipple think in the front on the right that has the rubber plug in it but he has a head and a rezzy and it looks like a bike raid. on it on the left. how do you do it thanks! http://z14.invisionfree.com/Blaster_...?showtopic=274