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How to calculate solar water pump power needed?

StephenSouthwestStephenSouthwest Posts: 635
in Problem solving
I'm putting in another water butt, and am thinking of a solar pump to take the water to a butt further up the garden. Can anyone recommend how powerful the pump needs to be (working out from the difference in height?

Posts

  • steephillsteephill Posts: 2,841
    https://www.wikihow.com/Calculate-Water-Pump-Horsepower - You would need to convert to SI units but the approach outlined is sound.

  • StephenSouthwestStephenSouthwest Posts: 635
    Thank you, I've realised I need something more powerful so I'm likely to go for the 750w Titan submersible from Screwfix.
  • wild edgeswild edges Posts: 10,497
    Machine Mart tend to have a better range than Screwfix and do some good external pumps if submersibles aren't practical for any reason.
    If you can keep your head, while those around you are losing theirs, you may not have grasped the seriousness of the situation.
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