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Flaco
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| Joined: | Tue Nov 1st, 2005 |
| Location: | San Carlos |
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Posted: Wed Nov 4th, 2009 08:54 pm |
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I have a Mexican rancher friend who needs to pump water on his ranch from a river to his corral. He has a 12v solar electric fence set up which charges a couple of 12v car batteries. I assume that he will just run a ½” or ¾” hose all the way. It is appx ¼ mile distance. The power source is near the corral not the river.
I checked on Amazon and they have many types. Several were marine bilge pumps and on demand pumps. Any suggestions if this is possible or not. The pumps could run all day if they won’t overheat. They could probably work with 1-3 gallons per minute. Would they be able to suck the water that distance?
Another possibility may be to run an electric line to the river where a pump could be if it would work. They would probably build up a gravity trough and have the water run to the corral. Maybe the pump may not have to work as hard.
Any help would be appreciated.
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Happy Trails
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| Joined: | Sat Jan 26th, 2008 |
| Location: | Florence, Oregon USA |
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Posted: Thu Nov 5th, 2009 02:25 pm |
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If a pump could be 100% efficient (which they cannot) the most it could "suck" would be about 23 feet in elevation (called "Head" in hydraulics jargon). Suction lift is very limited. The pump needs to be at the source of water to "push" it up the pipe.
Also, in general, the smaller the hose the more power it will take to push a given amount of water through it due to friction between the water and pipe wall, and it depends on the smoothness of the pipe wall and number of bends and fittings along the path. Each fitting adds friction loss, so more pipe and more bends equals less water and/or more power needed.
I think that bilge pumps are designed for high volume and low head (lift), so they will probably not be a good choice. How much elevation change is there?
Running low DC voltage a long distance may work, depending upon how much power is needed by the correct pump.
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will rogers
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| Joined: | Mon Oct 31st, 2005 |
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Posted: Thu Nov 5th, 2009 03:08 pm |
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To go 1/4 mile he better use at least 2" PVC.
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Happy Trails
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| Joined: | Sat Jan 26th, 2008 |
| Location: | Florence, Oregon USA |
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Posted: Thu Nov 5th, 2009 03:21 pm |
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I forgot to ask how many gallons or liters per day does your friend need at the corral?
And, by gravity trough, do you mean that it might be possible to just lift the water at the river and then just flow it in some sort of nonporous open trough, or half pipe, the 1/4 mile to the corral? That would be great compared to pipe.
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