The chances of a Swiftech or D5 pump exploding is probably minimal and at least until now, I've never read anything like this before. If you do a quick google, you can't find much stories about quality WC pumps but plenty of stories about all these 1 set WC kits In a custom WC solution, the other parts (like radiator, CPU WB, etc) would never go bad and the leakage normally happens if you do not screw your barbs tight enough or tubings are not tightly fitted into barbs. Other than that, I don't see any reason things would fail The difference is that with a custom set, it will not fail if you do it right but with kits like CoolIT, etc, it will still fail even if you followed the instructions 100%. The reason is because you have absolutely no control over what's inside and how it works, you just gamble and hope that the manufacturer ensured everything is packaged properly before being sold to us. If the worker missed out something in between, we won't know until we turn it on Sometimes it can be disastrous like the poor guy above.
Thanks Martin, you have a good point there and yes, my Swiftech pump is still rock solid stable even it's close to 3 years old Although it's expensive but I'm happy with it since it's reliable, totally silent and had the performance.