RobIsaacson said:For info. when I pull the trigger on mine I can't hear a hiss. Not sure if that's my hearing closing down due to the missus? but the welds show that gas is present.
I thought blowing holes was due to a too high setting?
Hope this helps
Rob
Little pin-prick holes in the weld (called POROSITY if you want to get technical!) are usually caused by not enough gas flow, but can also be caused by TOO MUCH gas flow. If you have your gas pressure set way to high it destroys the gas 'Shroud' & defeats the whole object. If you have the luxury of a twin guage regulator (bottle contents & output pressure) set it to about 10 litres per minute (LPM), otherwise, hold it to your cheek (WIRE FEED OFF!) & set it so you get a nice 'hiss' against your face.RobIsaacson said:Yep apologies for any confusion, I misread - holes in the weld itself is due to lack of gas.
Something to bear in mind though - are you welding indoors or out? is their a draught blowing the gas away?
I had a faulty gas valve originally which Malcolm sorted for me. That had me confused for weeks as sometimes I could get a good weld but it was mainly rubbish - I thought it was me being crap!
Regards
Rob