Hand membrane pump with manometer
This hand membrane pumpe serves for measurement of sedimentation on the beds of bodies of water using the sedimentation trap. It generates an overpressure as well as an underpressure to open the sedimentation trap for measuring and to close it for preservation of the sediment. The hand membrane pump is made of aluminium with a 18 ml piston. Using it for the groundwater shuttle, you can pump up the packers.