"Even small children can operate ournew lever pump and convey water. Thepump resistance as well as the flow rateper stroke can be varied. The design andeasy operation make it very suitable forchildren. Hydraulic oil (food safe) is pumpedin an enclosed circuit. The degree ofpumping difficulty can be adjusted to achild's strength. The flowing hydraulic oilopens the water valve for a short periodof time and then automatically - can alsobe adjusted - closes again. The water isof drinking quality up until the waterleaves the valve