On 02/12/2019 12:42, John wrote:
Cynic wrote in
:

If the distance and pipe id permit try rodding with a flexible curtain
wire

I reckon about 15 feet. At the radiator end there are 2 90 degree bends.

Had tried back flusing with mains water when the system was empty.

Cut the pipe, rod out and rejoin?

SteveW