[CyberDildonics]

My experience is the opposite. I'm sure all in one water cooling varies, but water cooling can be done mostly with cheap parts from a hardware store. The most exotic part is the water block, followed by the pump. Radiators can be used, but a lot of computers can probably cooled by using soft copper spools and a 200mm fan.

The pump does not need to have air flow to do its job and airflow is what carries noise. The water just has to be able to flow through the loop, pretty much any rate of flow will be pushing enough water to move heat away. If you hold your hand to a water block with the pump turned off, let it warm up and turn it on, it feels like the water is going over your hand. The temperature change is immediate. If you turn off the pump while the CPU is running, the temperature will rise a few degrees each second. Once the pump goes on the temperature drops down immediately.

There is no reason that the liquid should evaporate unless there are leaks and joints don't necessarily loosen over time. Also leaks are unlikely to manifest in something bursting and water spraying, even if you had enough pressure from your pump, which you don't (a pump can probably only pump water four or five feet higher than the pump itself, even if it is more powerful than the loop needs).

I have never had to maintain or fix something after it is together. Use vinyl tubing from the hardware store over the barbs and use small pipe clamps on top of them.

[CarbyAu]

I am a fan of water cooling too. Built gaming rig for my brother. He had an issue and posted it over 3000km (2000 miles) while full of water.

Was fine. I fixed it, refilled it and posted it back! Still running 5 years later.

But I do go a little more paranoid and insist on more expensive silicone tubing(some $$$). Fits nicer, feels nicer, less concern over perishing.