I am new here and found this place during my search for an answer. Here is my question/problem.

I bought a used Powermax 30 Air machine for a project I have going on. I need to cut 3/16" steel and thinner. Yesterday I finally had time to start this project and I am having an awful time cutting. It makes a huge mess and takes several attempts to cut to 3/16" plates. After one cut (20 inches) which starts out good but ends messy I have to replace the electrode or it barely cuts.

I was watching some YouTube videos on the machine and in the videos it makes nice clean cuts. Not the machine I have. I can get nicer cuts with a cutting torch.

I am curious as to what might be the issue. I am thinking maybe the water separator is not working? I was hoping it is something simple and/or common.