Plumbing advice - central heating/water system leak

[looby_hitch 10]

I would be grateful for any advice you can provide. We have a thermal store heating system and the ball thing on the tank (see picture) is leaking. We have no idea what it is, why it's leaking and if we can get a replacement. It's about the size of a tennis ball and says Zilmet on it, but a google search is fruitless for this particular piece. Please help if you can

 

Click here for picture of ball thing

[corgigasman 10]

It is a mini expansion vessel, you can pick them up but do not know how much (fitted them on BG jobs so no cost to me), guess £30?? It appears to be leaking from the centre seam so does look terminal. Hope this helps, cheers, Steve

[dan2802 53]

Yep, looks like an expansion vessel.

MickeyET is Mosborough based which I think is S20ish.

[Andy Rowland 10]

I'm a plumber and can come and have a look and sort it out if you would like.

call me on 07932073345 :-)

[Micky ET 10]

Job done ;-)