It's taken the plumber 2 days to get the new radiators on and things running. My 4 year old pump had corroded so badly that only the outer casting was left, and the inner metal had disintegrated into the vents in the impeller. all due to corrosion in the system. So there's a new pump on, and all radiators are firing away with a gunk-dissolver circulating. He is going to come back in a week or so and flush out all the crap again, and then refill the system. Sounds like I'm going to get another big bill soon...
It's a horrid damp grey day, so I have stayed in and made soup.