Hello, I have been using 2 water controllers for a year in conjunction with Gardena drip irrigation. As relatively little water flows there, I have not opened the garden valve fully, as this does not help. The opening is only about half a turn. Maybe that will solve the problem

This is also the case with me and I was surprised, but then simply ignored it, as it was otherwise tight.

I have been using 1 water controller since last spring and one for a week. A Gardena hose sprinkler is connected to both. The tap is only open very slightly, otherwise the pressure is far too high. I don't have this problem, it works perfectly for me.

Hello, I have also been using it for a year and this is also unknown to me. My tap is quite open.