The system was flushed out for over 3 hours with his machine thing after a sludge remover had been in the system for 4 days. Seems to know what he is doing. When it packed in again the plumber came round and had a look and persevered for over 4 hours. Cut into a pipe showed me the black stuff...
Problem with rads not getting hot. Had the system flushed out (£140) Worked for a while then only two rads worked. Plumber says system need repiping and new valves on rads which will cost £685. Is this a good price does anyone know? 7 rads in a 2bed bungalow.