MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.
Very simple: when the barrel is full, the water just flows back in the pipe, since it can not go anywhere else.
(Ofc. the maximum level inside the barrel should be a little higher then the opening in the diverter, otherwise this will not work.)