Pure Nonsense. Many CLC owners report leaks in forums all over the Net. Check the Corsair H50 forum and elsewhere...
In addition even if a mfg. is willing to pay for the damaged PC hardware, they can't guarantee you won't lose data and you are without your PC for several weeks while new parts are obtained, parts shipped back and forth and then you must rebuild your PC - with no guarantee that a water-leak won't happen a second time. Why would anyone want this water-leak liability when CLCs offer NO technical advantage over a highend HSF?????
Compared to a highend HSF CLCs:
1. Are thermally inefficient
2. Are a poor value
3. Are Noisy
4. Offer no technical advantage for the majority of PC users
You might want to read the link above where all of these aspects of CLCs and others are discussed without the meritless comments like "it will never leak" which no one can guarantee and many can prove is false.
There is no technical merit or logic for most applications to endure higher cost, higher noise, lower thermal efficiency and a water-leak liability when a quality HSF provides better cooling, a lower cost, lower noise and is extremely reliable.
As always I recommend that people Buy What Makes Them Happy but please do NOT spread false information on CLCs as this is a great disservice to forum members looking to make a technically informed purchasing decision.
Edited by AMD4ME - 4/18/12 at 12:18pm