What is the current view on using 10mm microbore for the last metre or less of the link from a radiator to the 22mm flow and return pipes from the boiler? In my case it would be much easier than using 15mm and would have fewer joints.
The pressure drop seems to be OK and the flow velocity will be low enough to be quiet. I need about 0.050 litre/s flow to each rad max
Are there any issues to do with 'flushing out' with 10mm microbore?
Robert