The basic hydrostatic equation can be simplified for manometers as follows(adsbygoogle = window.adsbygoogle || []).push({});

[tex]P_B - P_A= - \rho*g(z_B-z_A) [/tex]

I am having trouble figuring out what the order in which I should put the values of the pressure and elevations. Which is the higher elevation and which is the higher pressure? The order matters because the pressure can be below atmospheric. I can't seem to figure this out like I do with mechanics which pretty intuitive.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Basic Hydrostatic Equation for manometers

**Physics Forums | Science Articles, Homework Help, Discussion**