Overflow from Loft drip drip drip driping!!

[Mattlehat]

We are currently having a new bathroom suite fitted include Aqualisa shower, new WC, bath, sink etc. The shower and sink were fitted on Saturday and the bath had already gone in the previous weekend.

After the fitters left on Saturday we noticed that one of the overflow pipes from the loft was dripping (it was landing on our conservatory roof which amplified the sound so we could hear it!) .

I have called the fitter this morning as the dripping has increased since Saturday and he said it wouldn't have been anything to do with their work and would be a coincidence.

Could this really be the case?

I have tried the obvious like flushing the loo to see if it stops (even temporarily) and it doesn't.

 

[Charnwood]

It could be a coincidence.
Did they go into the loft to shut off any water so they could get on with the fitting?

 

[Mattlehat]

yes they were up and down in there all day and the water was on and off too.

 

[seco services]

Can be a number of things from a sticky ball valve to a mixer tap.

 

[Mattlehat]

The water going to the new basin mixer tap is currently switched off...?

 

[seco services]

Have you checked the ball valve isn't dripping ?

 

[Mattlehat]

No i haven;'t. Would that be in the main tank in the loft?

 

[seco services]

If thats the overflow thats leaking check both tanks.