[ny_driver]

Originally Posted by OC Maximus

I still don't think that DDC pump will handle straigt anti-freeze for too long. Mine was pumping but got really hot and flow slowed way way down. And this is with no waterblocks in the loop.

Like I said if you can make it gravity fed and reduce the amount of necessary lift to return the coolant, your pump will not be working nearly as hard.

My $25 (non-submersed)submersible harbor freight fountain pump pumps 70% antifreeze @ -40C very slowly, but effectively.......and stays nice and chilly in it's 6-pack cooler. But it WILL NOT work if there is air in the lines, and I don't think it would work as well if I hadn't modded the block.

And you definitely don't want to end up like Pedro.