Replace the failed after 10 years Einscheibenpumpe from the hardware store. Much quieter at higher tone, at standard application faster filling of the container and higher pressure on the hose, I have provided for the approximately 60% increase in electrical power. All fittings in plastic require especially careful installation. Deducting a star because product photo suggests that pump and associated pressure switches are not mounted, as I had assumed on the basis of product photos.
