Blocked pipe between boiler and 1st rad

[bennythedip]

Hi all,
Looking for advice on clearing a blocked flow pipe. The pipe is definitely blocked with sludge but it's buried in concrete so I can't cut it out. Has anyone used a compressor to blow it out? Any other suggestions much appreciated.

 

[lame plumber]

just repipe, saves black gunk on custards ceiling

 

[SafeGasInstall]

is the radiator piped on the primary flow and return as a bay pass ?

 

[SafeGasInstall]

repipe will be my suggestion too , I always if possible remove re pipe primary flow and return when doing boiler change

 

[AWheating]

pumping air/presure through will most likely just move the blockage to another part of the system.

 

[bennythedip]

Thanks for replies. It's not piped as bypass. I was going to remove rad and connect pipe on flow and pipe it to outside,then take off flow pipe at boiler and try to force it out with air. To re-pipe means having to lift a load of tiles in kitchen and do a bit of digging!

 

[Rickster123]

repipe will be my suggestion too , I always if possible remove re pipe primary flow and return when doing boiler change

No wonder you earnt so much last year!

 

[SafeGasInstall]

I said year 3 mate , this is up to now from April the 5th

 

[stevetheplumber]

Power flush

 

[jam1979]

if theres a blockage there then theres probably more to come like steve said power flush all the way