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Old 07-06-2010, 01:49 PM
emailthepilot emailthepilot is offline
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Default PVC for water storage?



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Just passing along a thought. I'm using 6" and larger PVC as underground/waterproof storage containers. I'm not a math whiz but would like to know how many feet of 6" pvc would be needed to store 500 gallons of water? Anyone? thanks
Old 07-06-2010, 03:06 PM
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By my extremely rough calculations, it takes about 340 feet of 6 inch diameter pvc pipe to hold 500 gallons. I am not a math genious either so don't take my numbers as law.
Old 07-06-2010, 03:59 PM
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Quote:
Originally Posted by davissp2 View Post
By my extremely rough calculations, it takes about 340 feet of 6 inch diameter pvc pipe to hold 500 gallons. I am not a math genious either so don't take my numbers as law.

Thank you!
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Old 07-06-2010, 04:38 PM
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Glad to help.
Old 07-06-2010, 04:49 PM
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Volume of a tube:

3.14*(R-r)*(R-r)*h
where R is the outer radius and r is the inner radius and h is the hight of the tube
Old 07-06-2010, 05:00 PM
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Use the calculation above the one The Saint used, do this in inches and when you get your answer divide by 231. This will give you how many gallons of water the pipe will hold in a given length.
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Old 07-06-2010, 05:01 PM
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Quote:
Originally Posted by actrisor11 View Post
Use the calculation above the one The Saint used, do this in inches and when you get your answer divide by 231. This will give you how many gallons of water the pipe will hold in a given length.
Act
sorry forgot the indicator for gallons, by bad and thanks.
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Old 07-06-2010, 05:21 PM
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You don't need the outer radius. Only the inner matters.
On a 6" pipe the inner radius is 3".
One cubic inch is .004329 gallons.
One gallon is 231 cubic inches as actrisor11 stated.
So 500 gallons is 115500 cubic inches.
Our radius (3") squared is 9" times PI equals 28.2735 sq"
Divide our desired total of 115500 the above, round and you get 4085 inches.
Divide that by 12 to get 340' 5" of 6" pipe to hold 500 gallons.
This all confirms the first response by davissp2.
That is an expensive way to store water unless you have quite a deal on the pipe.
Are you using schedule 40 or irrigation pipe or what?
I'd love to hear how it all works when you've finished it.
CJ
Old 07-06-2010, 05:29 PM
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ya it is about 340 feet for 6 inch pvc
8 inch pipe would require 192 feet
10 inch would require 121 feet
12 inch would be 85 feet

it is still cheaper to buy 55 gal barrels.
Old 07-06-2010, 06:24 PM
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I know that 1 foot of 4" pvc pipe holds one gallon of water.

Pvc pipe is not a good choice to store water but does a good job conveying water.It is not cost effective for storage as pvc prices have skyrocketed in recent years . Hell a cap for 6" pipe would probably cost $20.00 besides the cost of the pipe.

I do keep a 10' peice of 3'' around to dip water out of my well if the power is out and my generator is out of fuel.
Old 07-09-2010, 02:25 PM
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Quote:
Originally Posted by Nimmer View Post
I know that 1 foot of 4" pvc pipe holds one gallon of water.

Pvc pipe is not a good choice to store water but does a good job conveying water.It is not cost effective for storage as pvc prices have skyrocketed in recent years . Hell a cap for 6" pipe would probably cost $20.00 besides the cost of the pipe.

I do keep a 10' peice of 3'' around to dip water out of my well if the power is out and my generator is out of fuel.
What kind of valve/flapper did you put at the bottom?
Old 07-09-2010, 03:13 PM
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PVC is made by fusing vinyl chloride molecules with toxic metals such as lead and cadmium, which are added as plasticizers and stabilizers. Because of the chemical properties of chlorine, the by-products of PVC production tend to be far more toxic, more persistent in the environment, and more likely to build up in the food supply and the bodies of people than otherwise similar chemicals that do not contain chlorine. PVC is the only major plastic that contains chlorine, so it is unique in the hazards it creates.

Over time, PVC releases carcinogens such as vinyl chloride and dioxins, and incinerating PVC generates carcinogenic dioxin.

ExxonMobil is a member of both the Phthalate Esters Panel of ACC and the Vinyl Institute in Alexandria, Va.

The movie, Everybody' Fine, stars robert diniro who has lung problems from years of coating telephone wires with pvc.
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