Hey guys, I have a question about the Pastel coolant.
I built my current system in April last year, used brand new Primochill Primoflex Advanced Tubing and EK Pastel white coolant and obviously new blocks, namely the Aqua Computer Cuplex Kryos PRO for the CPU, and the EK Water Blocks EK-FC980 GTX - Acetal for the GPU.
This isn't my first WC rig, so I used my existing pump and radiators, these are 1x EK DCP 4.0 and 2 EK Coolstream 240 rads.
When I first got the system built, I flushed it all out with tap water running through the loop into a large bucket for a few hours, then used a 1:10 ratio of distilled water and vinegar to clean everything up for 60 mins, then used more distilled water and bicarbonate of soda to neutralise the vinegar again for 60 mins and lastly ran pure distilled water for 2 hours to make sure the loop was flushed of everything. I then added the pastel fluid.
The last few weeks I just noticed however the pastel has gone, I now have clear fluid... On the photos attached you can see straight through the tubes where I have squeezed them (first photo) but where I havnt (second photo) there is something stuck to the inside of the tubes, but as soon as you squeeze them it kinda washes away. Its not the plasticizer from inside the tubing as I know from previous experience with crappy tubes that its soft and squidgy, and doesn't just disappear when you press on the tubes like this stuff seems too.
I'm guessing the pastel particles have somehow fallen out of suspension, but the loop flow speed hasn't dropped so it isn't getting blocked, there are no tube kinks or 90 deg adaptors or anything, temps haven't risen and the fluid is being pumped at full speed all the time by the DCP 4.0 (4 litres/minute iirc, in a loop with about 500ml of fluid in it, so were talking about the entire loop being ran in under 8 seconds).
Anyone have any idea what's happened here? My current plan is to drain the whole loop, flush it all with distilled water, disassemble the blocks and clean them and then replace the tubing with solid white tube and Mayhems clear coolant. I like the pastel look, but right now it looks nasty
![Frown :( :(](/styles/default/xenforo/vbSmilies/Normal/frown.gif)
In comparison, here's what it DID look like.