pipe elbow

Hi All, I have encountered any issue that the hot water pipe in the ceiling started leaking. I called a plumber and it turned out that the connection was not tight enough, it could be tightened by hand easily. He used AB tools to tighten it as much as he could. Now, it is not dripping, but when...

I'd like to fit this vertical radiator closer to the corner, but would need to leave a gap for the valve so there isn't really enough room. Is there a compact double-elbow solution for mounting the radiator valves under the radiator, so I can move it closer to the corner? The 10mm Speedfit...

Hiya, I like to remove both side of the pipe elbows, which covered with paint - as the pictures below. I would like to replace it with a new one for the tower rail. Should just blow torch on it or remove the paint first? How can i avoid the wallpaper from getting burn from the heat? THanks,