Simple Overflow Stopper Here we describe an electronic system that uses a dedicated water-level sensor to switch off the pump motor as soon as the tank begins to overflow. Unlike many existing systems, this design does not r...

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Unlike many existing systems, this design does not require any modification to the water tank itself.

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Heather Turner on Instagram: "Awesome marble run! #maker #engineeringproject #awesome #nyla2017 @newyorklibraryassociation" 1 likes, 0 comments - techielibgrl on November 10, 2017: "Awesome marble run! #maker #engineeringproject #awesome #nyla2017 @newyorklibraryassociation".

Awesome marble run! #maker #engineeringproject #awesome #nyla2017 @NYLA_XD @ Saratoga Springs…

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