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Go Back   WakeWorld > >> Wakeboarding Discussion Archives > Archive through July 28, 2004

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Old     (malibuboarder75)      Join Date: Jan 2004       07-12-2004, 10:28 PM Reply   
I know there was a post for the amount of weight of water per gallon. It is around 8lbs. Well I was wonderwing what gas, lead, sand, and any other ballast types weighs per gallon.
Old    ag4ever            07-13-2004, 9:44 AM Reply   
Do a search on google for specific gravity. The specific gravity of a substance is it's relationship to water in the form of density or weight.
Old    gaboarder            07-13-2004, 11:47 AM Reply   
Gallon of Water = 8.33 lbs
Gallon of Gas = 6.5 to 8.3 lbs
Gallon of lead = ~95 lbs (l x w x h x 0.411) in inches
One Gallon = 231 cubic inches
Old    gaboarder            07-13-2004, 12:07 PM Reply   
Here is the easiest way to do it:

Formula that you need to use is (lbs/cu. ft. of material) * .1339(cu. ft. of a gallon) = weight of gallon of the substance.

Dry Sand = 100 lbs/cu. ft. * .1339 cu ft = 13.39lbs
Wet Sand = 16.06 lbs

The values for lbs/cu. ft. of material can be found at http://www.simetric.co.uk/si_materials.htm for materials and http://www.simetric.co.uk/si_metals.htm for metals.

By the way, you will have to divide the values on this page by 16.02 to convert them from Kg/cu.m.

(Message edited by gaboarder on July 13, 2004)

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