Wtf is in my tubing?

[Roadhog]

The month or so old tubing has turned green... I have flushed the water (distilled water) like every 1-2 weeks since I've been changing stuff a bit... Anyways, you can see the oldish green tubing, vs the day old clear tubing at the bottom...

http://img682.imageshack.us/img682/1047/004nr.jpg

[Factotum]

green - Corrosion in loop? but water clear in McRes :shrug:

[Roadhog]

green - Corrosion in loop? but water clear in McRes :shrug:

Yeah, dunno. The water stays clear, but the tubing turns green.

[Alphahydro]

I've had tubing turn green on me but not as bad as yours. My current setup has tubing that survived discoloration a little longer than my other setups and the only difference was I flushed the radiator more thoroughly.

[eth0s]

Are you mixing aluminum and copper in your loop? This could be accumulation of copper ions on the tubing, that would look green. Otherwise I don't know what would react with the tubing to turn it green.

[Serpentarius]

Flame-resistant properties in the tube/hose (that's why white PCs turn yellow)
Oxidization of the plastic tube/hose (polyurethane tube)
Possible long exposure of UV

either one of above or combination of one or more x Heat catalyst = plastic discoloration

i see some tiny bubbles in your loop from the pic .. is that a uv lighting as well?

well ... this is the closest explanation i know .... you might have to check on the chemical composition in the tube to know direct causes

[Waterlogged]

Were the rads ever cleaned with vinegar?