I have a Schenker 35l/hr unit and it works very well.
Only draws about 9 A...has to be the most efficient in terms of Amps per litre.
Its easy to use, easy to maintain ..was easy to install, and when I have needed assistance or explanation, Riccardo at Schenker was always helpful.
Like any device it needs to be installed properly and looked after properly.
I have a 20 micron filter on the raw ater intake followed by a 5 micron before it enters the membranes. I have a 20 micron carbon impregnated filter on the fresh water flushing
While Schenker reccomend a fresh water flush only very few days, I run a one minute fresh water flush at the end of every running cycle....it certainly extends the time between cleaning
cycles by weeks.
So I can tell you I am a happy Schenker customer !