Download: Low Power Airlift Pump Explained (Pneumatic Ejector Pump aka Geyser Pump with Check Valve)

By jlocke8


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This is a detailed explanation & presentation of how a pneumatic ejector air lift pump works and the materials I used to created it. I invented (re-invented) this airlift pump last year and am using it quite successfully for an aquaponics setup. This design works well for small scale aquaponics and scales up to larger higher wattage systems. Unlike conventional airlift pumps or geyser pumps, a pneumatic ejector is energy efficient and can pump to high elevations with low submergence ratios, utilizing the maximum power an air pump can provide.

Watch a video of it in action:

Watch a first test of the pump:

Watch the pump in my aquaponics application: