Daftoldgit
Well-known member
- Messages
- 285
- Location
- Wiltshire
I waw wondering today, the black grit looking stuff that gets flushed out from under the frame onto the sill, what exactly is it?
Welcome to the UK Window Cleaning Forums
Starting or own a window cleaning business? We're a network of window cleaners sharing advice, tips & experience. Rounds for sale & more. Join us today!
Black gritty stuff
- Thread starter Daftoldgit
- Start date
