[Sproket]

You can see how green it is in the pic. At night it was glowing real good. Then after 30 hours Bammm, it was gone. I have found this out from my test so far that it is NOT the presence of Air.
I left a open jar of the same exact mixture for 3 days and it is still just as bright.

Hopefully this test will tell me what it is.
Im taking two hose, one vinyl hose fitted together with a copper connection, and the other will be tygon fitted w/ plastic connection. Both will contain same mixture of UV dye and distilled water. Im willing to bet its the tygon tubing having some other reaction with the UV dye.

Sproket

**Who here USES UV green Dye in there system with Success**
Im sure somebody does. And what type of tubing/block are you using.

Thanks