The original post: /r/watercooling by /u/Blair287 on 2024-12-28 12:02:50.

I recently rebuilt my pc new cpu and gpu blocks and flushed the existing radiators with distilled water i did have red coolant in it before ran for years no issue.

I’m using Liquid.cool CFX Pre Mix Opaque Performance Coolant - 1000ml - Ghost White coolant, it claims it doesn’t use particles and is only liquid. Now and it worked fine for about a week now my d5 which is quite old but showing no signed of issues before this upgrade is not starting.

It happened yesterday I drained took the pump out and the impeller I couldn’t rotate it, I removed it cleaned the pump put back together and it worked fine for hours. Wake up today and once again the pump won’t start.

Is it really debris/dirt or has my d5 just decided to die exactly when I’ve done my upgrade?