? for someone smart 1/2 line to gallon

G The Egg Man

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How may inches of 1/2 water line does it take to hold 1 gallon of water?
 

me&thegals

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Welcome, G!

I'd like to help you with your question, but I guess I don't understand what you're asking. Could you explain a bit?

me&thegals
 

freemotion

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Oh, I think it is a math question, is that 1/2 inch diameter water pipe? Figure out the volume of 1/2 gallon of water and the corresponding volume in the 1/2" pipe? Sorry, don't know my formula's, and my dad is not around today. If no one answers, I'll ask him this weekend. If that is the question.

I would just get some pipe and fill it with 1/2 gallon of water and mark where it goes up to.... :lol: lazy, I know!
 

patandchickens

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If 1/2" is the INSIDE diameter of the water line (if not, you'll have to redo the math yourself with the correct #s), then:

you want 1 gallon = 231 cubic inches

the area of a 0.5" diameter circle is (pi)(r^2) = 3.14 * 0.25 * 0.25 = 0.2 sq inches in cross sectional area

231 cubic inches = 0.2 sq inches times X length

X = 231 / 0.2 = 1155 inches = about 96 feet of the water line.

I wouldn't have guessed *quite* that much, so someone might want to check my work, but I don't see anything conspicuously wrong with it...


Pat, who would ask math-oriented DH but he's not home yet.
 

TanksHill

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Go Pat,:clap I have not use that formula in a gazillion years. I would have never rembered it. :he

Oh, welcome G.
 

xpc

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Yes that is correct, as a rule of thumb 100 feet of 1/2" will hold 1 gallon of water. With each 1/4" size increment doubling that volume. 100' of 3/4" holds 2 gallons and 100' feet of 1" holds 4 gallons.
 

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