Constantly leaking outside overflow pipe

[bthorp]

I have an overflow pipe that comes out of the upstairs toilet wall and it is constantly leaking outside. There is a box flush with the ceiling above the toilet, I unscrewed the cover of this and found a metal tank/box that had pipes leading into it from the airing cupboard next door and the leaky pipe that goes out of the wall the other side. I am not a DIYer and have no plumbing knowledge! What can I do to stop the dripping? I assumed it was the ball valve but I can't work out how to get into either the metal box above the loo or the actual tank in the airing cupboard!

 

[Mikey456]

No hope unless you isolate the cold, remove all the pipework and slide the tank out to replace it. Call a plumber.

 

[bthorp]

Oh no! Thanks for the advice!

 

[stevetheplumber]

go in the loft see if theres a hole above for access

 

[kay-jay]

go in the loft see if theres a hole above for access

or make one!

 

[WaterTight]

amd if there's no loft make one of those too