On 01/02/2019 20:20, Tim Watts wrote:
On 01/02/2019 20:07, R D S wrote:
Someone has written 'gas pipe under floorboard' on the upstairs wall.
You pull the board up and there it is, with a speedfit cap on.

That can't be OK, can it? Or can it?

No.

It's certainly not ideal, but the standard cooker bayonet fitting relies
on O rings to seal as well.

Best, obviously, is a soldered on cap. How about a copper push fit? I
have always found them pretty secure.

Compression fitting? Allowed on gas fires.

Taper threads with PTFE? Fibre plus sealant? (Still needs soldering,
obviously).