I'll let you know as soon as I can price them out. I forget where I bought them but it was a major brand peltier supplier ... grrr. They'll handle 12-18v easily, I think they were 24v max ... or was that the power supply ... Regardless, 18v is probably the optimal level, since peltiers work on a delta T, if the hot side puts out too much heat (gets more inefficient the more power it gets) that doesn't get taken away fast enough you end up with HOTTER temperatures instead of cooler ones.
I forget what the optimum was on my old rig, but it'll vary from system to system, since radiators and waterblocks differ in how much they can dissipate or absorb, respectfully.
I'm just rambling on because I miss my old peltier rig ... but nowadays they're more common than bongs!
Anyways ... about the cleaning process, it worked AWESOME. The showerhead was the hardest to clean, and frankly I don't think it got maximum benefit from the CLR because I couldn't remove it from the PVC I had epoxied its mounts into. But ... once I got the lysol/pinesol solution going through it .. BAM, completely opened up again, just like new. The system runs great now. Originally I thought it was the two extra waterblocks that restricted all the flow, but it turns out it was just the buildup of crap that killed the flowrates.
I wonder if the iwaki MD20RZT I've got in the mail will be worth it now o_0
On a side note ... booting up, looked at processor temperature (which btw was running the same as the ambient temp of 23.5C at idle) I noticed my northbridge temperature was 60C! *HOLY SHIT!*
I turned off my system and noticed that TWO of the 4 cheezy northbridge mounts (my only friggen option, I hate abit for canning the 2-hole mounting method they used to employ) had ripped completely out ... so essentially, the northbridge was going uncooled. Some superglue fixed that, thankfully.
Mental note: next time you BSOD a couple times a week, it might be good to check to see if the northbridge mounts went funky again
So now the northbridge is a happy 26C. Hopefully it won't hold my previous oversight against me due to its current favorable conditions
