Get Ready For This One *Part 2*

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The discussion focuses on building a hydraulic RAM pump as a cost-effective solution for raising water. The pump operates using a waste valve and an outlet valve within a compressed cylinder, effectively elevating water. The goal is to construct this pump for under $25, utilizing inexpensive materials like PVC pipe. The poster seeks advice on sourcing the necessary valves, as commercial options are priced around $1500. The conversation emphasizes the challenge of achieving a low-cost build while maintaining functionality.
DjTechnics
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As i explained in *Get Ready For This* I have found the ultimate solution to my problem. Build a hydraulic RAM PUMP. These pumps were used 300 years ago to use the same water to raise water to the surface. The simple pump uses to moving parts which are a waste valve and an outlet valve into a compressed cylinder up and exerts the water much higher than originally tested! :biggrin:

*Now I need to build it under 25 dollars*
I know PVC pipe is the cheapest but i have no clue where to get these valves or what they really are.

Wish me luck!

http://atlaspub.tripod.com/0d85d910.gif
 
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This might help (see the link on the page for the details): http://nep.gngateway.org.uk/renewable-energy/renewable-energy-technologies/the-hydraulic-ram-pump

These guys are selling them for about $1500, so good luck building one for $25.
 
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Thread 'Have I solved this structural engineering equation correctly?'

Thread 'Have I solved this structural engineering equation correctly?'

Hi all, I have a structural engineering book from 1979. I am trying to follow it as best as I can. I have come to a formula that calculates the rotations in radians at the rigid joint that requires an iterative procedure. This equation comes in the form of: $$ x_i = \frac {Q_ih_i + Q_{i+1}h_{i+1}}{4K} + \frac {C}{K}x_{i-1} + \frac {C}{K}x_{i+1} $$ Where: ## Q ## is the horizontal storey shear ## h ## is the storey height ## K = (6G_i + C_i + C_{i+1}) ## ## G = \frac {I_g}{h} ## ## C...
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