Thanks for replying.
Anyway of telling which it is?
It is below the shower and strange how it seems to run in a pattern that would match the joists.
I assume I would be best to call a plumber out asap.
If it's shower leak, are they...
Hi
I have just noticed brown lines on my kitchen ceiling. They are not wet or damp too touch this is the 1st time I've noticed them. I have checked other ceilings nothing. The shower is above the kitchen. Hoping it's not a leak.
Now...