Originally Posted by fstfrddy
Be careful of that big O ring, is this a new pump? there is sometimes a problem where the pump body was molded together, some flash that was not cleaned off properly which interfers wit the O ring seating properly, that can be smoothed down with some very fine sandpaper, also lube the O ring with a touch of petroleum jelly or plumbers grease.
yeah, I think it had something to do w/ the O ring. I got it all put back together and it's not leaking. The pump is a little quieter now. I think the problem is airbubbles.
so what is the best way to get the air bubbles out? I can see little bubbles going through my gpu block. should I leave the cap on the res on or off?