thanks to all who replied to my posts GJ. my rig is up. my WW came nicely lapped except 2 semi-deep scratches where the cpu will rest ;(. 1 hr of lapping tookcare of it though. my real questions are: 1. i still have all these very very tiny bubbles and theres a lot of them how do i get rid of them? and also (this is a stupid question) how would i go about draining my system. i never thought about it. my system goes pump res tline WW pump. thanks