Name the boiler (overflow?) part!
Name the boiler (overflow?) part!
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Discussion

Steve_W

Original Poster:

1,563 posts

199 months

Monday 18th January 2010
quotequote all
Afternoon all,

Haven't been able to get a picture (or find one online), but there's an open black plastic cup-like arrangement in one of the vertical pipes from the boiler - I presume this is some kind of overflow/expansion item?

The pipe coming down from the boiler is constantly trickling water out down into this "cup", the pipe from which leads I know not where (it's a first-floor flat).

Now, since it never used to happen, I presume something is over-pressurised or leaking in the boiler somewhere.

From my poor explanation can any suggest what's happening (other than something's leaking!)?

Ta,
Steve

Ferg

15,242 posts

279 months

Monday 18th January 2010
quotequote all
It's a tundish and it is indicating a fault. The relief valve is lifting. If your pressure gauge is not up at 3Bar either the gauge is faulty and you have a problem, or the valve needs replacing/cleaning. Have you been topping it up?? If not, then the filling loop is open.

Edited by Ferg on Monday 18th January 17:18