Damn! It's an older American Standard Porcelain Chair, but I was hoping to get a couple more sharts out of it.
No funny farts or anything else during startup. I removed all the old toilet paper rolls then reinserted them. Next, I unplugged and plugged in everything else such as water lines. I even wiped out the inside of the bowl. Exhaust fans all worked.
So I plopped back down and got a really loud fart and just a bit of leakage.