What happens when you use brass barbs with a bear AL top:
Do yourself a favor and use Copper or Copper and Brass. Aluminum however will work ok even if it is not anodized as long you keep an eye on it and use strong corrosion prevention such as antifreeze. Water Wetter will work for a while but I wouldn't trust it with bear aluminum for a long time. Antifreeze however should work well. If it works for AL heads and blocks in cars with brass rads it should work for PC water cooling. I just hate antifreeze. Spring a leak and what a mess. I use just distilled water and Copper now nothing else and have had no problems for a month and a half running my REV 2.0 block 24/7. Copper is not that expensive either, usually 3 times more than AL but that is still under $7 for a 3/4" thick block. Hard to justify not using it.
I used to be a AL fanboy because of how easy it was to mill, but preschool is over, time to move on.
