Water Cooling Loop Leak?

[haocow]

Hi guys, I've built a custom water cooling loop around November and thought I had bled it out completely.  However, over the months, the water level has been dropping to the point where it's about 2-3 cm lower than when I started.  I don't think I have a leak anywhere, as far as I can tell, but should I be worried about this?

[xToFxREAPER]

Hi guys, I've built a custom water cooling loop around November and thought I had bled it out completely.  However, over the months, the water level has been dropping to the point where it's about 2-3 cm lower than when I started.  I don't think I have a leak anywhere, as far as I can tell, but should I be worried about this?

Coolant evaporates as well as there could be small air pockets you didnt get out slowly working themselves out. Custom loops are not sealed like an aio so they HAVE to be topped up every once in a while

[tek inpektor]

Tip the whole thing upside down and if you see water, there's a leak.

[haocow]

okay, so I can chalk it up to evaporation, then?  IF so, that's a huge relief.  And lol, I'd rather not flip my entire computer upside down