Thanks everyone.
I was thinking that if I isolate all but the one rad to keep, do a normal draindown and flush should tell me what trouble I have in the pipes. Seems a lot to pay £400+ for a PF when i'd only have some pipework and one rad to flush.
Maybe i'm wrong, but i'm replacing a 10...
Thanks Simon, and all for your comments.
I appreciate your comments about pricing.
For everyone's interest - some background on the sorry tale:
1 - As it happens my time is also valuable, I go to work over an hour away and taking time off to meet a plumber at home isn't easy.
2 - one...
I've read some of the other entries on here about power flush but would love some advice.
I'm replacing my grants combi 90 and a couple of the rads are sludged and the system needs a good cleaning out I think.
A couple of plumbers have suggested power flushing and a couple haven't.
I'm...