By Diego - 10/27/2017 3:03:14 AM
I think that I have a problem with my vacuum pump. The problem is that when I clamp the line between catch pot and my mold (drop test), the vacuum level change. But when I clamp the line between the pump and the catch pot, the vacuum level doesn't change . What's going on???
When I clamp the line like in the photo, the vacuum level doesn't change.
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By Warren (Staff) - 10/30/2017 9:37:49 AM
Your altitude will certainly make a difference as gauges are a "relative" measurement device so your air is already thinner and closer to a vacuum than at sea level.
A valve on the pump can be quite useful.
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