Does anyone know anything about Magnaclean?
The man has just been to service the boiler and says there is nothing dire wrong with it, there was some air in the pump, also that there was sludge in the pipes caused by metallic particles.
For which he recommends something called Magnaclean, which requires fitting by a boiler engineer.
Does anyone know anything about this? Such reports as I have managed to find online seem fairly positive, but one does not know the evidential value of these.