Central heating wiring fault. In need of some help please.

[Bartdude]

Hi tamz, i was recently in edinburgh for for a weeks holiday and i noticed on the buildings there they had these 22mm copper pipes on the external walls which came from inside and went vertical and then had a bend pulled more than 90degrees.

Is this how you guys do your blow off?

They don't even like giving water away up there🙂

 

[tamz]

Hi tamz, i was recently in edinburgh for for a weeks holiday and i noticed on the buildings there they had these 22mm copper pipes on the external walls which came from inside and went vertical and then had a bend pulled more than 90degrees.

Is this how you guys do your blow off?

No🙂
Those are expansion pipes on the old tenement flats.
Each flat had its own lead lined cold water tank, usually above a lowered part of the bathroom ceiling in the middle of the flat. There was usually a dublo tank (narrow twin cylinder) in an alcove next to the sitting room fireplace. As the hot water was het by coal via a direct back boiler you weren't allowed to terminate the expansion above the tank because they boiled over every other day (it was too far away and no road to it anyway) so the expansion was taken up to high level and out through the wall. A loop of pipe was then taken up against the wall about a foot or so then dropped. These pipes are often onto the main pavements as most don't have front gardens. The water just ran down the wall.
And they worry about a pyssy wee prv pipe nowadays😀

how can you test if it is the pump?

If you can't trace it pull the wire out and see if it stops.

They don't even like giving water away up there🙂

We've got loads of the stuff. Lovely and soft too. None of that limescale or filtered sewage rubbish up here😀

 

[mutley racers]

oh i see. Now that makes sense. Thanks. i have been wondering what they were for a long time.

Yes its funny now how the regs are with blow offs and discharge locations from unvented.

Quite silly really.