DIY Doctor

Main navigation

sink drainage

Postby stuartmcc » Fri Jan 29, 2010 3:43 pm

I have a bathroom sink which doesnt drain properly. It seems to drain for a few seconds then stops. The water then remains and drains over quite a long period. I have tried to check for blockages. and looked under the floorboard at the plastic drain pipe. I notice that about 3 feet from the sink the plastic pipe is joined to a lead pipe and that has a small u shape loop in it with a screw drain hole at the base. I thought this might be causing an air lock. Is there any purpose to this loop and could I just remove it.
Rank: Labourer
Progress to next rank:
Posts: 4
Joined: Thu Jan 28, 2010 5:06 pm


Simply Build It

Postby plumbbob » Sat Jan 30, 2010 12:46 am

The "U" shaped trap should not be there and will be responsible for all sorts of problems. It is possibly where your pipe is blocked - it wouldn't surprise me!
Rank: Project Manager
Posts: 1891
Joined: Wed May 07, 2008 9:59 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics