My rig is sort of done, been playing games on it for quite sometime. So today I decided to touch it up since I left it at 95% completion state?
So when I was making custom led cables for all my leds I decided to drain the loop as it turned to purple colour. This time I bought a ph meter to test the coolant on why it is keep changing colour. Sorry for crappy images, will take better pictures with my nexus 5 when I free


Look at the coolant, what the shit is this! I seriously dont know why it keep changing from red to purple

So the ph meter is a bit off, had to calibrate it

Calibrating the ph meter..

This is the value of distilled water, its a little off. Need to do a 2nd calibration...

So I tested the coolant that is in my loop, dafuq is this shit. Why is the ph value so high? I was expecting it to be acidic since I read a post mayhem said that if the coolant is acidic & we didnt bleed the loop properly then copper oxidation can occur in the radiator & thus changing the coolant colour. I am no chemist, can someone give me an explanation or perhaps a theory on why this is happening?


Done filling her up again. This time I added little red dye compare to what I did before, I hope if it turn darker it wont affect that much. Well at least I hope so...

This is the reading when I added dye into distilled water.

When I add 1 drop of biocide into 1 cup of water, the ph drops a lot. I know I am supposed to use 1 drop per liter, I am just testing what is the possible cause of my problem. Distilled water alone & with dye has almost no difference so only possible cause now is mayhems biocide.

My measurement is right, 1 drop of biocide in 1 liter of water. Thats what is in my loop atm, nothing more nothing less. No silver coil etc either. Its been 1 day, colour is still good & I tried my best to bleed it (it was a tough job since I have 2 RX radiators). The coolant ph value that is in my loop atm is around 6.3. I thought mayhems said his dye would stabilize the ph value but that isnt the case I see. This would probably be my last try, if it still changes colour then I give up. The next time I do maintenance I will get a premix coolant instead.
Another issue I have is my sata cables is too short lol, ordered some extension. Need to wait for it to arrive to touch up & send my rig to apes for some photo session
This post has been edited by infernoaswen: Dec 31 2013, 02:30 AM