So i filled my system last week and noticed theres some tube residue in my middle cpu fins at the bottom. My temps are good but my anxiety couldnt accept the fact they are there. I drained the system and cleaned every fitting,adapter, and tube with distilled water. But i didnt bother flushing the rads as they were already flushed before, and i thought emptying is enough. I filled the system again yesterday i see the same practicles kinda less in the middle cpu fins same spot. Temps are good. Should i bother emptying again or should i wait for my regular 6 month maintenance? I tried to make the picture clear but i couldnt because it was hard to capture them rgb on or off.