saturated conditions in a receiver tank PROVE ME WRONG

[The MG Pony]

hey i found my answer read this and thank

Fundamentals_of_Fluid_Mechanics_Second_edition_ by GS Sawhney my answer.jpg

these all do come into play as well, the sight glass creats turbulance in the fluid flow and cuase shearing currents to form wich disrupts the flow in the core of the pipe. if you look it seems the bubbles start just below the sight glass if not further down.