I've used a g6 basic ato for a couple years now, and it's one of the most reliable pieces of equipment I have. When I wanted to setup a Awc system, there was only one brand of pump I would trust with the task so I bought two more... and another for dosing kalk!
SpectraPure® G7 LiterMeter® Basic Auto Top Off
Fantastic customer service from top to bottom and great pump!
Pump vibrates pretty bad once water goes through it.