clipping

Hi, I have attached 2 photos with this message (please ignore the red circle on the second photo, it's not relevant for this issue). The first photo is the bottom of the pipe. The second photo is the top of the pipe. I have this main water pipe inside my flat. It goes from the roof and down...

The photos below show two heating polypipes that are being put in that run in parallel with the joists. They are centered between the joists, and are not clipped for a distance of about 2.5m (the pipes go through a block of wood about half way). I thought that polypipes needed to be clipped but...

Hi. I'm fitting new radiators opposite to where the existing radiators are in two first floor bedrooms. I plan to run 15mm plastic pipe along the existing notches (where the boards have already been lifted to fit the existing rads) then I can run along the joists to the new location opposite...