So far my blumats have been a failure, same issues as you.
Using Roots organic 707 mix. Thought I had them dialed after a week, but they keep randomly staying on and flooding the tent. Keep dialing them down but it just happens again eventually.
Three weeks and still doing it. Sucks because I'm gone for work and the wife has to keep shop vaccing brown water from the tent every day....Needless to say my hobby hasn't been popular lately
If I cant get it figured out I won't be able to grow with my current job