Hello there, fitting sizes confuses me alot.. Thread, ID, OD, barbs, compression.
I'm currently trying to assemble a watercooling system consisting of 2x ATI 5970s and a i7 930, which is gonna be cooled by 2 loops in my Corsair 800D case.
I got everthing ready to be bought.. EXCEPT the fittings and tubing. I'm gonna go along with compression fittings with a 1/4" thread. I don't know what ID or OD would be best tubing and fitting wise. Can some pro please explain how it all works?
Generally you use 1/2" or 3/8" tubing. Since most threads are 1/4" (G1/4), you pretty much just need a bunch of compression fittings that are 1/2" barb, 1/4" thread. In my searching I found that 3/8" fittings were a bit less comon that 1/2", and having bigger tubing is going to be better anyway - less flow restriction/less pressure drop.