Hi everybody! 

We got an old vakuum pump from KNF Lab (KNF Neuberger GmbH, Germany). Nevertheless, we don´t know how to connect a bottle of buffer with the pump. I am attaching a picture of the pump, where on its left side is bottle, which we need to use for the buffer. Unfortunately, we can not use the bottle on the right side, because we need to keep the buffer in the left one. Does anybody have any suggestion how to do it? Thanks a lot.