Replace the gas lines?

[bluemoose]

I just found a great regulator setup. The gas lines look good from the outside. Is there any way to teat to make sure they are ok? Do they need to be cleaned? Can anything go wrong?

I have had my current set up for 3 years and have never done any gas line maintenance, but not sure about these used lines.

Advise?

 

[day_trippr]

Well, you really don't know where those gas lines have been.

I'd replace tubing, gaskets and o-rings on anything obtained in used condition, just out of GPs...

Cheers!