I have one of the autovalves, I was wondering if it has to be tacked in place so it doesn't flow on top of the water or can it be just place in a container.
Did you already figure something out? Yes, you need to latch it down somehow, but make sure it's easy to remove. The smart valves sometimes get clogged with roots and/or need to be messed with to work properly. I love my auto pots, but they aren't perfect.