New to the group, glad to be here but please bear with me. How do you check the metal content of the cooling water for a Laser. I am currently using a pond fountain pump, not a separate chiller and it works well. Reason I am asking is I was in the middle of a job and my laser started arching to the water inlet. I refreshed the water, cleaned the tube best I could and even put more silicon sealant around the area it looked like the arc was coming from (HV line). No luck, same problem. I was told that it was due to too much metals (contaminants) in the water possibly from the pump . I guess I'm looking for a meter of sorts i can place in the water to monitor its purity. If y'all have any ideas please reply. At the point of ordering a new tube and P/S. Not sure how to put up a video but will try. BTW I am using a Chinese 60W Red/Black. Bought brand new 3 years ago and this is the first major problem.
Thanks in advance