diy bore pump

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Forums › Home Workshop DIY › diy bore pump

Pinpoint

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#280444 15-Dec-2020 12:50

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Hi all,

I am looking at drilling a bore. I don't need much water flow.

So looking for a 12v solar power pump. All I can find are those fountain pumps.

Does any one know where to get a non subm. pump with solar panel?

Cheers,

lxsw20

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#2621981 15-Dec-2020 13:08

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Windscreen washer pump?

Scott3

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#2621989 15-Dec-2020 13:27

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What is the discharge head, suction head, and desired flow rate?

(Heads should include both gravity head and pipe friction.)

Pritty hard for Anybody to help with a pump selection without those parameters.

frankv

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#2622000 15-Dec-2020 13:46

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I don't know much about it either, but I think there's a physical difference between pumps that suck water up and pumps that push water up from below. The maximum height you can suck water is 10.3m. If you want to lift it further than that, you have to push it from below. Also, depending on the height difference between the water in the bore and the pump/outlet and how much water you want per minute, there may be considerable work done in lifting the water, in which case you would need a powerful pump and large solar panel.

Assuming you want to lift 1L of water by 5m every minute:

force of gravity on the 1L (=1kg) of water: F = 10*1 = 10N

Word done WD = F*d = 10N*5m = 50J

Power = WD/t = 50J/60s = 0.83W

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