Just a quick bit about that pump, they are kick ass and pump a lot of water for the money. But did you try it out before you mounted it? I have a Via Aqua in my compy and it made the most horrendous grinding noise when I first had it set up. Turns out some of those pond pumps have a anti clog feature that keeps them from burning up when you use them in a pond. The problem is when you use them in a closed circuit WC loop, the anti clog feature rattles and makes a hell a lot of a noise. Anyhow, if to figure out if you have that kind of pump, take out the impeller, hold the magnet end of it, and see if the impeller end spins about 3/4 of a turn. If yes, then you need to glue it in place or else you get the noise. Also, they have a hard time pushing thicker than water coolant. I tried mine out with 50/50 Zerex and water and the thing wouldn't start. I thinned out the mix to about 25/75 and it starts all the time. Your doing a bang up job, keep up the work. Hope this helps out.