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Originally Posted by jaydee116
If they get sent to pH then I will know. I don't have the equipment to tell within 3C right now.
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I looked in an old book from my dad that I found in a closet, I bet the one with the channels will perform LESS, the length of the channel is more than 12 times the diameter of the channel, so at the end of each little duct you will have a near perfect flow of water, so the middle of the stream or current does not absorb any heat other than a little bit from the water around it. The little indentions from the holes in the channel will act *possibly* even like little indentions on a golf ball as a buffer at the end of the channel so it's even WORSE *possibly* (depends on speed of the flow). Also if you use the same pump your speed/flow will decrease a lot, so according to this old book, the one with copper towers will perform the best. Not the one with the channels. (this takes into account surface area too...)
I might have found someone with a CNC machine, woot I won't have to solder !
