We escaped! This morning at zero-dark-thirty we rousted ourselves out. Believe it or not someone in a white box truck was making deliveries to the Cummins shop at 3:20 a.m.!
So, got everything fixed, flushed and filled and we were out of there about 1 p.m. Of note is that Mom got a new pet cock. Says so right there on the repair ticket. The old petcock on the radiator leaked so they installed a new pet cock. Spelled exactly that way.
Mom’s happy to have a new pet cock.