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Forum Index : Other Stuff : 24 volt water pump??
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| birdhouse Regular Member  Joined: 27/01/2009 Location: United StatesPosts: 63 |
hello all- been looking around the internet for a small 24 volt water pump, and realized they are spendy! best i could find was a sureflo 3.0 GPM for a hundred and some odd dollars (US) all i really need is 1 GPM or even 1/2 GPPM. any sources for cheap good 24 volt pumps? (yes i know i want it all) thanks! birdhouse i pee more than once before flushing, and don't have to flush at all up at the ranch! |
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Downwind Guru  Joined: 09/09/2009 Location: AustraliaPosts: 2333 |
What about low voltage pond pumps or bilge pumps?? What sort of head do it need to push up. Pete Sometimes it just works |
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| birdhouse Regular Member Joined: 27/01/2009 Location: United StatesPosts: 63 |
pete- thanks for the reply. less then 10 foot of head. is it a really bad idea to run two twelve volt pumps wired in series? even if they each have their own hose? i catch rainwater in a 1550 gal tank then need to pump it into a 55 gal barrel to get usable pressure out of it. thanks birdhouse i pee more than once before flushing, and don't have to flush at all up at the ranch! |
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GreenD88 Senior Member  Joined: 19/05/2009 Location: United StatesPosts: 104 |
24v Water Pump - 24VDC Ebay Description: $24.95 + Shipping ($7 for me) Salvaged from equipment which was built/Tested but never sold. Only ran during testing. At 3.5 GPM Total Head = 4.8 Feet, Current draw = 0.710 amps At 1.0 GPM Total Head = 10.9 Feet, Current draw = 0.545 amps Peak eff of 24.93% at 2.20 GPM Gorman-Rupp Industries Pump 24VDC Continuous rating, Direct drive Any new pump is gonna cost an arm an a leg unless you build it yourself. Say use a 24v Cordless drill wire it up and take one of those $5 Centrifugal Pumps and your set to go. Edit: Found a better one 23Hour left on bid no bids $25 Buy It now option $50. FlowJet 2100-12 Feshwater Pump 24v Licensed Master Plumber / EPA 608 Universal License / 410a Safety Certified / Medical Gas Brazer/Installer |
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| birdhouse Regular Member Joined: 27/01/2009 Location: United StatesPosts: 63 |
thanks green! i may just have to pick one of those up! it's either that, or run a cheapy 110 pump off the inverter. seems better to go 24 volt direct! birdhouse i pee more than once before flushing, and don't have to flush at all up at the ranch! |
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| Downwind Guru Joined: 09/09/2009 Location: AustraliaPosts: 2333 |
I see no real reason 2 x 12v in series would not work but would be a last resort if you have to. If i had 2 lying around doing nothing than i would give them a go. Looks like GreenD88 is onto the right gear above. Is it a direct vertical lift you need to do, or a sloping rise. The reason i ask is with a direct vertical lift you can use a tube and a small air pump like an aquarium pump and inject a air bubble into the column of water in the tube, and it will lift the column of water up into the tank. Its not a huge amount each time but running all day it will move a lot of water and running costs are very small. Just a thought. Pete. Sometimes it just works |
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MacGyver Guru Joined: 12/05/2009 Location: United StatesPosts: 1329 |
Another thought along simplistic lines would be to construct a direct-drive peristaltic pump using surgical tubing. I make these often and use them in reverse as "air" engines. The first one is kinda tricky, but after you get the hang of it, the following builds are a snap. If you want particulars, email me or PM me and I'll tell you how I build mine. I use plastic blocks, sealed ball bearings and a lathe. You gotta have or have use of a lathe for this one. A peristaltic pump will move little chunks of water through a hose and can pump to incredible head pressures, depending on the wall thickness of the tubing you use. Of course, the thicker the tubing wall, the more power it takes to compress it, but if you're using 24-volt motors, it's in the bag! . . . . . Mac Nothing difficult is ever easy! Perhaps better stated in the words of Morgan Freeman, "Where there is no struggle, there is no progress!" Copeville, Texas |
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| Downwind Guru Joined: 09/09/2009 Location: AustraliaPosts: 2333 |
Mac, Why not use a push bike tube instead of surgical rubber? Pete. Sometimes it just works |
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| birdhouse Regular Member Joined: 27/01/2009 Location: United StatesPosts: 63 |
those do all sound like fun projects!, but i went with the 24.95 e-bay special. shipping was only 5.70! should be here in a few days! i like the idea of throwing a switch and having it run. thanks all for the input! birdhouse i pee more than once before flushing, and don't have to flush at all up at the ranch! |
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| MacGyver Guru Joined: 12/05/2009 Location: United StatesPosts: 1329 |
[Quote=Downwind]Mac, Why not use a push bike tube instead of surgical rubber? Pete. Memory! Surgical tubing has good memory; when you squish it flat, it returns to nearly 100% of its original shape and size immediately. The little wheel inside a peristaltic pump pushes a bolus of liquid ahead of the squashed portion and as the wheel passes away from the wall of the pump, the "memory" creates a tiny suction, refilling the cavity as it awaits the cyclic return of the little wheel and it all happens again and again. By push bike tube, I'm thinking you mean a bicycle inner-tube and those things lie flat unless they have internal pressure to hold them round. If you mean something else, you'll have to re-post it, because I'm not from where you're from and there's likely a language barrier at work here! . . . . . Mac Nothing difficult is ever easy! Perhaps better stated in the words of Morgan Freeman, "Where there is no struggle, there is no progress!" Copeville, Texas |
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