[Brando_21]

I am running a external cooler master aquagate unit currently, does alright but i think could be alot better, my question is that with the res. pump unit listed in title if they are mounted below motherboard (2 layer cube pc case) i know i will have to use a t-line to fill, will there be any problem with the fill port on the res. leaking as it will not be the highest point, dont want it to leak via water head

 

[DuckieHo]

No, there won't be an issue. It will just take longer to bleed. Also, you will have to watch out for bubbles getting trapped in the higher parts of the loop... only if water level is low. Otherwise, the pump will move all bubbles into the res eventually.