Water Column

Your 40 > Hello, my question is, dose any one know how much p.s.i. 40 inches of water

Let's see if I can calculate it :

3 HF = 1.203 P.s.i. .3 = 1.302 * .1 = .1302 .03 = 1.302 * .01 = .01302

Therefore 40 inches = 3.33 Head feet = 1.346 psi If I did it correctly.

Water is 62.5 # / cu ft.

As an example, 85.3 ft is 37.02 p.s.i.

Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder IHMSA and NRA Metallic Silhouette maker & member

Ed Atyeo wrote:

The calculation is simple if you know the density of water.

PSI = pounds per square inch

The question then is how many pounds does a colum of water 40 inches high, with a cross section ('footprint') of 1 square inch have?

If the above post is correct and water has a density of 62.5 pounds per square inch, then a one square inch colum that is one foot high has a weight of 62.5 / 144 = 0.434 pounds. (144 is the number of square inches on the base of a cube one foot on each side).

Hence, a 40 inch colum has a weight (per square inch) of 0.434 x 40 /

Well water is actually 62.43 but who is counting.

The table in my "Handbook of Applied Mathematics" listed 62.5 (assumed it states)

Glen was requiring specifics - but missed my typo.

the 3 HF = 1.302 as used below it twice over. I listed 1.203.

Then our numbers come out exactly.

The table of ten numbers were carried with plumbers (mostly big cities) and simple math was needed. - Shifting the decimal point and adding are needed.

Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder IHMSA and NRA Metallic Silhouette maker & member

Mart> Let's see if I can calculate it :