Serious consideration should be given to replacing microbore entirely if:
Standard power flushing, which uses high-velocity water to clear sludge, is often for microbore pipework. Micro bore piping microbore central heating problems
Power flushing is a standard procedure where high-pressure water is pumped through the system to clear sludge. This can be disastrous for microbore. Serious consideration should be given to replacing microbore