I may be very very stupid

[hilbil21]

....for not knowing, but can anyone tell me what this is??

[AgentProvocateur]

It's the central heating overflow pipe I think. If you ever have to drain the system it comes out there

[hilbil21]

Thank you X

[Orchidflower1]

Dh says it looks like something that drains the radiators for central heating- he isn't a plumber though. X

[hilbil21]

Thanks that definitely makes sense xx