[ctuai]

I've finally got my Lynx setup going and have about 20 hours on the torch. 2 questions so far.

1. I'm using a round 2" didymium lens mounted into a gooseneck holder. After a couple of hours my eyes begin to feel irritated and slightly itchy. Do I need to also use a welding lens?

2. After awhile the torch begins to foul that shows up as bright specks on the torch tip and when shut off there are tiny flakes of tin foil like material attached to some of the gas ports. I'm using a guitar string to clean. What is it and what's causing this to happen and do I need a dedicated port cleaner?

Thanks.