Wirtz (spiral) water pump

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wirtz water pump prototype designed and built by innovatatus for Plymouth University Bambui EWB Challenge
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My grandfather’s farm had one of these but the inlet was about 4 inches and it tapered down to 1 inch as it spiraled into the centre 🧐

smityca
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felicidades compañeros desde (Colombia) los saludos, primero como se llama y como puedo hacer la pieza o parte que sale al principio del vídeo que es de color negra que es la que hace la rotación y ustedes luego retiran para hacer la prueba del balde y dos tienen que poner una trompeta mas grande o la botella mas completa para que retenga mas agua y así tendrán mas flujo de agua.
congratulations in from Colombia greetings, first as it is called and how I can make the piece or part that comes at the beginning of the video that is black that is what makes the rotation and you then removed to test the bucket and two have to put a larger trumpet or the most complete bottle to retain more water and thus have more water flow.

mariarocha-mrsk