Hi, just joined the forum today. I recently purchased a Clarke 155 invertor and tig torch. Just tried a few practice welds with varying degrees of success. I seem to be getting a lot of oxidation on welds, I suspect I need to increase gas pressure running at 6lpm as suggested in handbook. I was wondering if anyone in cheshire area was available to give me a brief tuition on tig welding. I can supply the beer tokens. Thanks in advance.