That sounds reasonable, this is my first liquid PC so I am out of my Depth (bad Pun?) didn't realise it had a Pump!
Last Machine I worked on with Liquid cooling was a memory upgrade on an IBM 3090 but that feels like a different Universe
Order Reference 1288197
Case
InWIN 805 Type C BLACK MID TOWER GAMING CASE
Overclocked CPU
Overclocked Intel® Core™ i7-8700K Six Core (3.7GHz @ up to 4.8GHz)
OC BIOS FIle
Download Overclock BIOS File
Motherboard
Gigabyte Z370 AORUS Ultra Gaming: ATX, LG1151, USB 3.1, SATA 6GBs - RGB...
My 2 year old machine appears to be slowing down and overheating when the CPU is working hard (sorts on a large Single threaded database) I have cleaned out the grilles and fans but no change Does the water cooling have a limited life, or is there a way of topping it up? Would a fan upgrade help?