Quote Originally Posted by mackrackit View Post
Darrel must have some hidden meaning in his formula.
Nothing hidden. 2.307 is the reciprocal of .4335

Either way gets the same result.

However, I believe you need to divide by the specific gravity, instead of multiply. Not that it matters with an SG of 1.0

Here's an interesting article.

Liquid Level Measurement
http://www.dynisco.ch/literature/Tec.../TechNote8.pdf