I have the unit for about six months every 2 weeks in use without problems. After I un read here all the negative reviews I wonder there are possibly two different batches or manufacturers was rectified? I screwed the device, no trace of water. I then slowly let gaaaaanz repeatedly run out of Behäter on the edge between said plastic housing and stainless steel pan of water. and again: no traces of water inside the device. One can also clearly a transparent rubber seal between the housing and stainless steel pan. Either I have had with my device luck and the other buyers here bad luck with her. More I can not say this, would be good times if the manufacturer or the distributor in Germany express themselves time to do so.