Trickling noise coming up through bath overflow? Drainage and wastage systems and plumbing help, advice and answers

[hmltnangel]

Morning all. New member so be gentle.

Fitting a new bathroom to the house. 3rd one I've done in my life. The others were fine. This one though, I've noticed a trickling Noise which seems to be coming up through the bath overflow. Ive checked and all plumbing I've done is tight. So no idea.

Any suggestions?

[B4Less]

Might have somethig to do with not having a P trap if you do not have one installed for the bath. I would suggest either fitting one or checking the one you have fitted is not leaking.