Have I bought the pump for several rain barrels. Impression: very good Operation: very good Power: still well could be something more, because more pressure losses caused by 1/2 inch hose, but it was enough to a Giesstab (Hozelock) to Giesen garden. Volume: very low The automatic at higher priced model I do not need. Would again take this model. I bought another pump in August, you can with this pump also has a basement auspumpen.Diese pump is much better than the quality of the hose connections of Gardena. Because not all of Gardena is good.