I am dying here. I'm not dumb. And I swear I have searched around for an answer. Every time I think I have found the answer, I try it, and it doesn't work.
Until this morning I have only used on float switch in my sump for my ATO. I just used a when open on, and had a min time of 15 minutes. This has worked fine for a year now(luckily), but now I would like to add some redundancy.
I have now added 2 more float switches at higher heights. All I want to do is make it so if either of these float switches close, it will stop the pump. I still want it to run for 15 minutes and stop(15 minutes won't make the middle float switch close).
I have tried defer statements, min times, I just cant get it to do what I want. Either it stops when the bottom switch closes, or doesn't stop when the upper switch closes.
And just to say before anybody tries to string me up, I do have the bottom switch opposite so it fails closed not open. Just wrote it that way for ease of understanding, for me and you.