why wont the water drain in my hand basin in the bathroom. i have taken the trap off and clenaned it out . And have also poured 3 full bottles of "drain unblocker" and still water wont drain. it does drain a little bit , ie over night but takes hours..

Karen, October 2009

Beyond the trap the water runs on - out of the house - in my bathroom it runs through an outside wall - if the pipe through the wall is too flat, still water with sludge in it (grease residue from soap mainly with skin flakes and hair) can collect and will block the pipe over time.

You may need to clean out the pipework the trap connects to - something flexible might be best - access from inside or outside whichever is easiest.

Good luck...

Peccavi, October 2009