cheers for that

the system is 15mm copper.

see i reckon when the builders added that rad they have created an airlock. me and the missus was at work see when they did the build so i canthonestly say if they fully bled the sytem or not.

its seems strange why i have no water going to my shower either which is in our front bedroom.

maybe i shud just get a plumber out now then and swallow the cost