Hello,
my name is Jens, and I am from Germany, lower rhine area. I am a chemical engineer, more or less retired. During my active time I had to work with the design, realisation, commissioning, automatisation and trouble shooting of evaporation and crystallisation plants, some of them with high corrosive liquid phases. I had to deal with a large number of pumps, tiny dosing pumps up 30.000 m³/h axial pumps.
This is only to give an overview of my not so academical background. I got curious by reading an article at heise.de / MIT Technology Review 12/2020. So here I am, feeding my curiosity and maybe I can help. Who knows.
Best regards
Jens