We’ve got a radiator in the kitchen that seems set for problems – a narrow distance from the wall, two feed pipes going either direction from the centre at the bottom and not much clearance from the skirting. So, when we dropped a serving board down the back, we had to concoct a rescue plan.
What worked in the end was feeding a loop of string, weighted with small washers, down the back and using that to pull one end of a long, thin cloth down. We then worked the cloth under where the board was and used the other part of the loop to pull it back up. Simples!
It did take about half an hour but not only was an interesting engineering problem for the brain but a successful rescue mission to boot.