Not a bad idea but at the same time i think he said an inch in height was about 60 gallons? And i think it was a slow drip, so it would probably take a while to notice a water hieght change.
I'm not worried about the height. I'm checking for signs of water where it showed up on the last two tests.
I was making peanut butter cookies and forgot about the water, so ended up with 27" of water instead of 23" and so far no leaks. It's about 4" shy of where it leaked on the second test. We'll see in the morning.