Something to note is that, the Alert threshold is checked against how long the ato pump is run (should be always in multiples of check interval) and not after how long the pump is run. It is intended to avoid overrun, and not under-run. You can see my settings here:Running 3.3.1, it may be just my understanding of how its supposed to work, my top off is pretty consistent, say 25sec every time it tops off. What I wanted and what I thought those options would do for me is to send an alert when usage was above my normal usage and if you wanted to disable it when it alerted you could enable that also. Since mine is pretty consistent I wanted it to disable and alert if it went say, 40 sec as opposed to the normal 25sec.
Hope that makes sense, right now I have it set but it ran longer and did not send an alert or disable the ATO function. Its not as critical since I use a fallback float but would be nice to at least get an alert if it runs longer than I think it should...
Does that answer your question?