Am I alone or has anyone else noticed the plastic lines on their alcohol/meth kit have turned color from transparent white to transparent tan? I am wondering if this is just the line aging over a 1 year period from reacting with the 100% denatured alcohol I run. Is this common or am I experiencing something unusual? It isn't just a portion of the line. It is the entire system's lines. The alcohol in the tank is clear always and I never run any additives.

 

This is normal. Its just the aging of the lines along wwith the alcohol doing this. Just about every clear line I have ran has turned yellowish tan.

 

After six months mine have turned light yellowish also.