Free download of your Einhell BG-GP 636 User Manual. Still need help after reading the user manual? Post your question in our forums. one emitter/plant) by means of pressure pumps (Einhell BG-GP 636, Germany). to the manufacturer's instructions at the end of the experiment.Specifications. Facts, figures and information for Garden Pump BG-GP 636: here you will find detailed technical data, as well as specific information on Manual for Einhell BG-GP 636 Garden Pump. View and download the pdf, find answers to frequently asked questions and read feedback from users. View the manual for the Einhell BG-AW 1136 here, for free. This manual comes under the category Water pump and has been rated by 2 people with an average of BG-GP 636. Garden pump. Art.-No. 41.802.65. Features. Handle (1). Water filler screw (2). Water drain plug (3). Pump housing (4). ON/OFF switch.