Thanks for replies, is really, really appreciated. How would I know where the 15mm outlet pipe connects to the system? How do I know if my pump is broken? Am so stupid I know... :cry:
I wanted to put some cleaning solution in my radiators and the boiler had been banging and knocking on and off for some time now, i have bled all the water out of the system and have refilled the header tank, but now cannot get water back into the radiators, when i open the bleed valves there is...