- Have you checked so there is no lead in this setup?
Lead leaching into the body is no good.
Lead is usually in gauges and in some release vacuum function on these pumps and gauges.
Here is a warning label I read about one of these products:
⚠️WARNING: This product can expose you to chemicals including lead, which is known to the state of california to cause cancer and birth defects or other reproductive harm. for more go to www.P65Warnings.c.gov