Coolant loss?

[mechanicalfluff]

I just put in a 360 rad along with my 240 and i'm mysteriously losing coolant from my res. My case is BONE dry, never used 2 radiators before. common? Air bleeding out? (no noise/bubbles). Lost about half a cup's worth of coolant over the past 5 days (running 24/7)

[FloRolf]

Either you had a lot of air in the system, its pretty fucking hot or a leak.

[cooperred]

You either still have air in your rad or you have a big ass leak

[Najuno]

I'd say you still have air in the system. You can try to move the case around carefully to get the air out while the machine is running. Things like that happen sometimes when you mount a rad overhead i.e... this can be a bit of a pain to get all the air out.

[Leonard]

I just put in a 360 rad along with my 240 and i'm mysteriously losing coolant from my res. My case is BONE dry, never used 2 radiators before. common? Air bleeding out? (no noise/bubbles). Lost about half a cup's worth of coolant over the past 5 days (running 24/7)

It could be air bleeding out and or the coolant "settling" in your loop. It sure isn't a leak because you would sure see half cups worth of water in a PC case along with non-working components. You should try topping it up and if it doesn't happen again then it was just the coolant "settling" but if it happens then you should check your whole loop very carefully.