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How much would a gallon of water weigh
montanajoe
Forums Admins, Member, Moderator Posts: 58,040 ******
pulling it 300 feet up with a rope??
Asking for a friend.
Don't know, never tried but imagine it'd get heavier and heavier each time you lost hold of the rope and had to start over.
Comments
8.34 lbs. how much does the rope weight?
google- 8.3 lbs
8.3lbs no matter how many feet you pull it up. The rope would get lighter the higher you pulled it up though.
I wager you would NEED to drink that gallon after pulling it up that far!
Companies make hand pumps designed to go into your deep well BESIDE your existing pump and pipe. Costly but WAY more efficient.
Just sayin'
I remember pulling water out of a well at grandpa's house but no where near 300 feet maybe 30' give or take
Carrying water up the long lane at my uncles in two pales was much harder
Water:
8.34 pounds per gallon
7.38 gallons per square foot
.433 PSI per vertical foot of water elevation, or 2.31 feet for one psi.
My friends pull their own water.
Our irrigation wells used 800 cid engines rated at 200 horsepower to lift 1000 gallons per minute 70 feet out of the Ogalala aquifer.
Tell him to get his kid to do it, then it weighs nothing.
This must be some kind of a joke you are playing on us joe. First, you will have a tough time pulling a gallon of water with a rope. Next if you have a gallon bucket at the end of the rope then you will have the weight of the rope plus the weight of the rope (which as has been said will lessen as you raise). Also let's talk about effort (work) to pull it 300'. What if your bucket hits the side of the well casing causing an additional temporary increase in lifting effort. Then we need to talk about your rate of lift. That will affect the work expelled.
But in answering your original question, negating any soaking of the rope your answer is zero. You simply won't get any water.
See what happens when old jeff posts at 2:10 AM.
😁
"A pint is a pound the world around". Grade School, mid 50's. So there are 8 pints to a gallon so the answer is 8 pounds. But, keep in mind that different liquids have different densities.
I think you mean 7.48 gallons per ‘cubic’ foot ,,,,,,,,
Have you considered an Archimedes Screw instead of a rope & bucket?
You could set up an 8 foot step ladder above the well. A ten foot step ladder would be even better.
You could hang a little pulley from the top of the ladder and run your rope through the pulley. It wouldn't be too hard to lift that water with a rig like that.
You could hang a pulley from the top of the ladder, and attach a second pulley to the bottom step, and attach a third pulley to the top. Running the rope through 3 pulleys reduces the amount of force needed to lift the water bucket. If the bucket weighed 15 pounds, with three pulleys you would need to pull with only about 5 pounds of force.
A hundred feet of rope weighs 18 ounces. This is an old industrial type pulley, working strength 2,000 pounds. I got it off of ebay for 17 bucks. There are all kinds of beautiful, 100 year old industrial pulleys on ebay, and many new ones as well.
I did....😟
The simple answer to a simple question is: it is going to weigh as much at the end of a 300 rope as it does at the surface of the Earth. 8.34 pounds.
You guys are getting way too technical!
Why has no one mentioned the added weight of dissolved heavy metals that will add weight to the water? 😋
The farther you have to pull it up would give it more time for evaporation though.....
You guys are brutal! Joe’s head must be spinning by now.
The water will weigh the same, but the weight of the rope will keep getting less..
And fiery auto crashes
Some will die in hot pursuit
While sifting through my ashes
Some will fall in love with life
And drink it from a fountain
That is pouring like an avalanche
Coming down the mountain
He never asked about the weight of the rope.
So would the water.
Weight is a function of gravity and distance.
The mass of the earth and the water (m1 and m2) stay the same, but the weight (F) is inversely proportional to the square of the distance between the two centers of mass (R2):
F = G(m1m2)/R2
Brad Steele
How about all the little microbes in the water? How much do they weigh? 🤔
Cling on's on the rope? Etc.
Are you North or South of the Equator? The Corealous (sp?) effect of the Earth should be considered here, as well.
Phases of the Moon? Etc.
If your really gonna get technical about it.
You could always take dehydrated water with you. Then when you got there just add water to hydrate it back. Easy peasy. Ha...
Well, yeah ...................................................... what ?
Weight is not the problem - it's the work you gotta do to get it up that counts.
work = force * distance
work = (8 lbs water + ~10 pounds rope) * 300 feet
so you're looking at 5,400 ft.lbs. of work
Think you'll work up a sweat?🙄
Lube the bucket handle for less friction. Everyone lubes the handle-
So I guess it is easier to just drink a beer. Don
Great point, Don.
At least when drinking a beer you know the lift is less each time you raise the glass.
Brad Steele
All of these "Calculations," do not discuss/equate anything to/about "Just How Thirsty, Are You?"
That would be the key to pulling up a gallon of water from 300'.
Any effort/force/Ft. Lbs of Energy, Etc. are all just subjective, until that is factored in.
Thirsty enough? Water available 300' down?
What? I've gotta pull up 1 gallon (@8.34 lbs/gal.) Up 300'?
Get outta my way.
Please,.....no Bud Lite even though it's lighter !!
"Never do wrong to make a friend----or to keep one".....Robert E. Lee
Lordy-Lordy😫
Heck with this well stuff! 🥴
Just source yer self an overhead aqueduct. 😉
Just be sure that it's high enough to allow traffic on The Appian Way........or Route 66......to pass beneath.😖
Gotta get the slope.......just right, though. 🙄
See.........I got yer back. 😇
What about the rope? Organic or synthetic? How big should the diameter of the rope be?
.243 we all know it can do anything........
Or............some 20# test on a Garcia 5000.
For better "feel" ...........a Fenwick Graphite. 😛
Fair enough. So, starting at 3500' above sea level how many feet would Joe have to lift a gallon of water for it to lose six ounces of weight?
no wonder folks went to bottled water filled at the mop sink in the back of the store
How deep are the wells in Hawaii ??