Ok, I was wrong. I turned off the water supply to the water heater ONLY, not to my whole house, just the water heater, that’s what I was supposed to do right? I then went to all of the sinks and the shower & opened the hot water side and it DID stop running, all of them. So this rules out cross connection right?
I want to say that I don’t believe it is the dip tube because I had the dip tube on the old water heater that I had 6 days ago and it was fine, but I was having problems.
Suggestions? Am I just doomed to 7 min showers?