Apparatus for creating surges in an aquarium
Automatic prime and flush siphon condensate pump system
Automatic swimming pool cover drainer
Automatic syphon system
Constant flow liquid supplier
Conveyor dewatering system
Degassing circuit for liquid tank
Float controlled syphon valve for swimming pool cover
Fluid drain pump
Flushing cisterns
Gas-plug type valve
Irrigation and drainage based on hydrodynamic unsaturated...
Liquid-plug-creating device
Roof siphon drain
Temperature actuated siphon system
Two stage float valve
Valve assembly particularly usable with a coffee brewing basket
Water level control device