This is a newly assembled rain barrel donated without all of the clamps and seals to a local master gardener project.
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After some detective work and a few more hands I was able to assemble it and put it to use. It's about six feet tall and roughly 50 inches in diameter. How many gallons does it hold?
26 answers
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Hmmm.... formula for volume of a cylinder is pi times the radius squared times the height... So 3.14 times radius of 25" squared (625) times the height of 72" 3.14 x 625 x 72 = 141,300 cubic inches To convert cubic inches to gallons you multiply times .00432900431 So 141,300 times .00432900431 = ~ 612 gallons Another way to look at it is every inch of water in a 50" cylinder is equal to 1,962 cubic inches, or roughly 8 1/2 gallons. Had to kick my shoes and socks off and use fingers and toes for this one....:)
Hewitt Remodeling Services LLC
on Nov 09, 2011
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At roughly 8.35 pounds per gallon, that's 2 1/2 tons of water...
Hewitt Remodeling Services LLC
on Nov 09, 2011
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Wait a minute... what time did the train leave Chicago? I did not know I was going to have to bring a calculator today.
Kevin M. Veler, Law Office of
on Nov 09, 2011
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Math problems on Hometalk. I like it. Don't get me started again, though, on why we are ridiculously not allowed to have rain barrels in Colorado.
3po3
on Nov 09, 2011
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@Kevin, Now as a lawyer, you don't need a calculator....just a thesaurus. I keep one handy to calculate my estimates. Let's see, 24 man-hours @ $1.75....yep, can keep the doors open another day..... Tim
Hewitt Remodeling Services LLC
on Nov 10, 2011
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Pie, someone mention pie?
Woodbridge Environmental Tiptophouse.com
on Nov 10, 2011
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Less math....Ya...that one looks about the right size.... http://therainwaterstore.com/index.php/water-tanks/above-tanks/650-gallon-water-tank.html Where is the pie?....I'm hungry
KMS Woodworks
on Nov 10, 2011
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@Professor Kevin..... I figured you probably throw in some psi calculations..... :) ... and I'll take mine ala mode....:)
Hewitt Remodeling Services LLC
on Nov 10, 2011
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YOU NEED RAIN FIRST!! Hard thing to come by in Atlanta Ha-Ha
Judy V
on Nov 10, 2011
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You BOYS are having too much fun...good to get the OLD brain cells working!
Patsy W
on Nov 10, 2011
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I think I hurt myself...
Hewitt Remodeling Services LLC
on Nov 11, 2011
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Tim, I think you hurt my brain even trying that.
Kevin M. Veler, Law Office of
on Nov 11, 2011
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Okay folks, soooo how many gallons?
Joe Washington
on Nov 11, 2011
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Here in California it is illegal to collect rain water! I'm not kidding, it is considered theft of water from the water company. It should hold 187 gallons +/- of water.
Chuck D
on Nov 11, 2011
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Is this a local law Chuck? I know that as of 2009 there was no state law in California. Amazing. I did a little research and found that Colorado and Utah have state laws prohibitinig rainwater capture because they say it infringes on the water rights of parties downstream. It's definately a different story here in Georgia! BTW, you're way off the mark at 187 gallons.
Joe Washington
on Nov 11, 2011
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I thought Hewitt had it right. I also get about 612 gallons. Is that wrong?
3po3
on Nov 11, 2011
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If I lived in any of those states...I sue them as soon as they cited me. They'd never be able to enforce those laws...so collect away Steve. If you get cited, I'll foot the legal bill in your defense...or might even play Clarence Darrow and fight it myself.
HandyANDY - Handyman & All Repairs, LLC
on Nov 12, 2011
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My dyslexia was showing. 817 was my estimate, not 187, sorry. I'll research the water law a bit more. I'm stating that due to the results of a law suit involving the state water authority and a cattle rancher north of Gorman Ca near the California aqua duct. The states argument was similar, stating he was depleting the natural influx of water into the fresh water system. You have to remember here in California P.E.T.a has been allowed to sue Sea World demanding that Shamu and the other trapped water mamals be given protection under the 13th amendment prohibiting slavery! The state also hates the cattle farmers due to their "clean air violations" they love the fresh milk, and cheese, but the smell of a cow patty or fart, were suing ya! So when these guy's set up devices to capture what little real rain the central desert valley receives, it makes your little 6 foot tall container look like a pimple. That's why they got sued, 100's of farms in a co-op, thousands of huge collection systems. Thus the state cried foul.
Chuck D
on Nov 12, 2011
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600 ish...based on the link I posted too. Not being able to collect the rain that falls on my house is indeed a goofy law...or if you think about it the acres and acres of pavement in various malls and shopping centers which direct this to waste water plants who in then have to treat it all.
KMS Woodworks
on Nov 12, 2011
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Handy Andy, I am pretty sure the authorities look the other way on rain barrels, so I'm not too worried about it, but I having covered Western water law from a reporter's perspective, I don't think I'm willing to fight the man on that one. It's too darn complicated and ugly.
3po3
on Nov 12, 2011
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Ok guys, I'll put you out of your misery. It's 421 gallons. I understand the dimensions were really ballpark but since Hewitt did the math and was closest with 612 gallons, he's our Grand Prize Winner!. That's worth a big pat on the back!
Joe Washington
on Nov 14, 2011
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Didn't think to subtract to compensate for the ridges and tapering. It's not a perfect cylinder, which I assumed for my calculations. Joe, have you actually measured the capacity or was that the rating on the packaging?
3po3
on Nov 14, 2011
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Shoot...I was hoping the grand prize was a pocket protector and a roll of athletic tape for my glasses.....
Hewitt Remodeling Services LLC
on Nov 14, 2011
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Boy, look at that Hewitt trying to get all Shabby Geek on us just because he knows pi. :P Why next he'll want a magic marker to color his athletic tape.....sheesh!
Kevin M. Veler, Law Office of
on Nov 14, 2011
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Sorry Hewitt, no goodies. This particular rain barrel is manufactured by a German company, Graf. It can be equipped with a pump and appropriate filters and best of all, it can be buried........ I'm just sayin"
Joe Washington
on Nov 14, 2011
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Steve, the information came from manufacturers specs.
Joe Washington
on Nov 15, 2011
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