Quote Originally Posted by rjsinoz View Post
hey i found my answer read this and thank

Fundamentals_of_Fluid_Mechanics_Second_edition_ by GS Sawhney my answer.jpg
That is not your answer,

you can get localized low pressure areas, which do cause bubbles which need time to collapse, But that is not what you are seeing.

Your pics are steady steady state your vid was not, which showed pressure change "change being the magic word"

Even though you show some insight into testing your testing methods are highly flawed for precise measurements along with your instrumentation.