Apparatus for the automatic purging of the reservoir in a water
Automatic flushing device
Device for siphoning water from a ponding area on a flat roof
Flat roof auxiliary drain system
Flushing siphon
Liquid dosing apparatus
Reliable trap filling device for siphon apparatus
Self priming siphon
Siphon apparatus
Siphon pump having a metering chamber
Trigger mechanism for siphon apparatus
Vacuum activated closed loop system