Not trying to start another EK sux thread
Tore down my loop for cleaning and to replace the fluid. It has been running for 2 years and temps were still fine, and the fluid looked fine. Was using EK acid green coolant.
The CPU block had green residue under where the jet plate injects water, nothing appeared blocked, this easily was removed with brushing.
There was also a green film in the bottom of the reservoir, and the tubing from the CPU to the GPU, and GPU to the pump were stained, the other tubes were not as badly stained.
The GPU block (Titan Hydrocopper on a 980ti) is a little more concerning. It did not appear that any of the channels were blocked. But it is stained and looks like the plating has been removed. Before and after pics are from when I disassembled it and after cleaning with toothpaste and an old tooth brush.
So what is up with the block? I assume the plating has dissolved and the discoloring it related to that? Or it the green caused by the coolant?
I flushed the system with distilled multiple times, replaced a couple hoses that were stained green, and refilled with Mayhems X1. Still leak testing and getting the bubbles out. But temps were fine before and I don't have any measurements to compare before and after.