Home-Made Hydraulic Ram Pump (PVC/Galvanized)¶

Pumps & Lifting • Est. CapEx: $120 USD • Lifespan: 7–15 Years

Technical Overview¶

A DIY hydraulic ram pump that uses the water hammer effect to pump water to a higher elevation without electricity or fuel. It is ideal for remote livestock watering, irrigation, or household supply where a flowing water source with at least 1 meter of fall exists.

Key Specifications & Engineering Parameters¶

Parameter	Specification
Category	Pumps & Lifting
Capital Cost (CapEx)	$120 USD
Power / Energy	100% Gravity / Zero Power
Target Scale	Household (5–10 people)
Standard Lifespan	7–15 Years
Technology Maturity	Commercially Available
Primary Mechanism	Water flows from a higher source through a drive pipe, gradually closing a waste (impulse) valve. The sudden closure creates a pressure surge (water hammer) that forces a small portion of water through a delivery check valve into an air chamber, compressing the air. The compressed air then pushes the water up the delivery pipe, after which the waste valve reopens and the cycle repeats.

Engineering Trade-Offs¶

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Cross-Reference & Interactive Tools¶

Need to evaluate this technology for your specific field site? Run the WhatWater.info Selector Engine to compare it against 100+ alternative solutions.