Water Wetter permanently stains tygon.
 

Yeah, after so many month's of using my tygon it's definately stained brown. I bought a 1/2 pipe cleaner brush, and tried all sorts of cleaning agents. No results, at all. My tygon is permanently a brownish color now...
st00pid water wetter... anyone know if that purple ice stuff stains stuff purple? What effect does it have on glowdye?
-Zoson

My tubes are stained after just 6 months..... oh well, they will still work!

Tygon has a slight brownish tint to begin with (at least the Tygon I'm looking at), how much worse does the brownish tint get?

They're talking about the CLEAR tygon.


and, that sucks. Glad I stuck with Water & a splash of antifreeze.

I believe my Tygon is absorbing the UV green die Im using. Sounds crazy but the green glow is gone after 30-40 hours. The same thing I put in system is in a Gatorade bottle and that is still glowing strong. Plus Im seeing a slight cloudyness of the tygon after 2 days. I may pull it out or part of it!!

Sproket: I had a similar thing happen to my setup. I put in my pink coolant when I built it (distilled water + water wetter), and after 3 or 4 weeks my coolant was clear again (and the Tygon was still clear too). I figured that since the water-wetter should be forming a protective layer on all the metal and that since I have a very small volume of coolant (no res) that I somehow used it all up, so I put in a bit more pure water-wetter. Now (about 1 year later, coolant has never been changed, just topped up) the coolant is a browner shade of pink, but still not really brown either. Without draining it I have no way to know if the Tygon is actually stained, but I should find out in the next month or two when I rebuild/upgrade, and if this thread is still alive then I will update.