Han wrote in
:

snip

A problem much easier solved with metric measurements.
Reminder. google does calculations for you. Google knows
conversions.

1. What is the inside diameter of the pipe? Say it is 1 inch, or 2.54
cm. 2. The length is 300 feet or 300*30 cm, or 9000 cm (a foot is
actually a little over 30 cm, 30.48 cm, so you can redo the math).
3. Volume of pipe is 2.54*(pi)*9000 or 71,816.8081 cm^3 or 72,000
cm^3 4. 1 cm^3 weighs 1 gram
5. water in pipe weighs 72,000 gram, or 72 kg
6. 1 kg= 2.2 lbs
Final: Water in pipe weighs about 158.4 lbs

(Sorry ...)
Major variable is the actual inside diameter.


Sorry, need to use pi*r squared not 2r*pi
(2.54/2)squared*pi*9000=~45000 grams
45 kg=100.32 lbs

Better?

--
Best regards
Han
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