I need a pump that will shoot LOTS of water extremely far

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Discussion Overview

The discussion revolves around the design and setup of a water pump system aimed at projecting a large volume of water over a significant distance. It includes considerations of nozzle design, pump selection, and the physics involved in achieving optimal water jet performance.

Discussion Character

  • Technical explanation
  • Exploratory
  • Debate/contested

Main Points Raised

  • One participant suggests that distance is influenced by nozzle velocity and jet stability, proposing that a small nozzle can project water far but a larger nozzle is needed for bulk flow.
  • Another participant mentions that adding spin at the nozzle exit can enhance jet stability.
  • A participant recommends using Bernoulli's equation to match system pressure with desired mass flow, advising to select a pump that can handle a large orifice and then throttle it down to a smaller nozzle.
  • Concerns are raised about the power requirements to maintain water flow, indicating that insufficient power could lead to operational issues.
  • One participant humorously suggests that a fire engine could be a solution, questioning the budget constraints of the original poster.
  • A later reply mentions a specific high-capacity pump used in a well-known water feature, implying it could meet the needs described.

Areas of Agreement / Disagreement

Participants express various viewpoints on the best approach to achieve the desired water projection, indicating that multiple competing ideas exist without a clear consensus on the optimal solution.

Contextual Notes

Participants have not fully defined the constraints of the project, such as budget or specific performance metrics, which may affect the feasibility of proposed solutions.

Who May Find This Useful

This discussion may be of interest to individuals involved in engineering, fluid dynamics, or those seeking practical solutions for water projection systems.

Erazman
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what would be a good setup to shoot as much water as possible , as far as possible?
 
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Distance is a function of nozzle velocity and jet stability.

So a small nozzle will project a fine jet a long distance, but if you want bulk water flow you will need a larger nozzle.

Putting a spin at the nozzle exit will increase jet stability.

When you have selected your nozzle then you need a pump to deliver the mass flow desired. Benoullis equation will allow you to match the maximum system pressure at any point to the maximum mass flow.
In general pick a pump that pumps a lot of water through a large orifice and then throttle it down to a small nozzle.

Remember to work out the power required to move that much water as well, otherwise your batteries will run flat before you get the system up to pressure.
 
Those are pretty vague constraints, Erazman. You could buy yourself a fire engine, but I suspect that that is somewhat beyond your budget.
 
The 1MW pump powering Lake Geneva's "Jet d'Eau" might do.

http://en.wikipedia.org/wiki/Jet_d'Eau
 

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