Did a new auto shutoff valve valve fix the problem? Sure looks like that's what it is to me in the video. I have one on my system but do not use it 'cause I've never been able to get it to work consistently. No desire to try another one, I just don't trust them. Always home when I run the unit & set a timer as a reminder to keep an eye on production. Even with this procedure I've had a few mini floods because I get distracted. If I relied on the auto shutoff, I'm sure I would have had a major flood by now.