ooh, i can cut out a little circle or square of 1/8 plexi and drill holes in it for the jets. this way i can either have a high flow or an jet impingement WB. oh the possibilities for customization
orderd the copper today, 20 pieces of 1/4" x 2" x 3" for $45 shipped. not too shabby, i think.
im prolly gonna disregard 2a and just drill a big hole in the top for the barb. i can still solder it instead of threading. i've been thinking of a way to make the indentations from the drilling round. i dont know if they make bits that are round instead of conical. the best i've come up with so far is to use a ball type dremel bit on them after drilling to make them rounder. i remember my dad having a carbide bit with a nice ball on the end at home.
would i have to use antifreeze or water wetter if i solder anything? i just dont know what solder is made of, and how it reacts with copper and water.