That's normal, a mechanical diaphragm pump will pulse like that or even a bit more. An electric can also see a bit of thatI was wondering about the needle bouncing if that indicated anything
What he said. Mechanical diaphragm pump will have pulsations in discharge line. It’s doing exactly what it should doThat's normal, a mechanical diaphragm pump will pulse like that or even a bit more. An electric can also see a bit of that
So, uh.......Perfect