I have just power flushed my microbore system prior to fitting a new boiler. The system was working OK with no cold areas in the rads and no banging in the boiler .
The dump water ran clear from each rad and from the final system drain.
After removing the old boiler I found that the water dripping from the old flow pipe was black with fine particles and the interior of the pipe has a coating of black muck. Am I just being fussy or have I got to do it again?
Because of access problems I connected the power flusher by breaking into the return pipe just before the boiler, rather than at the circulator but I cant see that should make a difference.
The dump water ran clear from each rad and from the final system drain.
After removing the old boiler I found that the water dripping from the old flow pipe was black with fine particles and the interior of the pipe has a coating of black muck. Am I just being fussy or have I got to do it again?
Because of access problems I connected the power flusher by breaking into the return pipe just before the boiler, rather than at the circulator but I cant see that should make a difference.
