Bought in August 2013 and used twice. Mid-2014 back out of the cellar and - surprise: The blue head (hopper) has 2 large cracks (stress cracks appear). One can the device even without this head fill, since the fill hole is generously sized, but a longer life should have the plastic used. Otherwise, the adapter works well. I make it so, about 5 m high to spray the roof to combat blue-green algae.
