As a small flaw, I would look at the built-in timer. There were no intervals can be set, for example. 10 hours a day at a time and then break, which is not so great. If you set on 24 hours a day, although you can switch to an external intervals taxes, but, then, the included battery is quite fast in the pump's switch instructive and control is all messed up.
However, there is a simple solution, the built-in electronics may be very facilitated removed and bridged, at least if you Schauben the original times openly has. Now I can control everything from the outside to my wish.
By the possibilities of the multiway valve and the handling and function overall I'm VERY satisfied, would buy again!
