This definitely looks interesting. One concern I have is whether the current being pushed through the 3 pin fan connector is well within the connector spec. I had one of the old original vapochills and one problem that it had was that asetek only used a single 4 pin molex connector for it's power...the 12V current was way too much for that single connector and led to early problems. I ended up soldering in 2 connectors in parallel to split the current a bit. I hope the current requirements of the pump are conservative relative to the max current handling spec of the 3 pin fan connector.