Mouldy sink drain pipe from poor installation?

[BxlBill]

Hello,

A couple of years ago I had a hand basin installed in my WC which shares a wall with my kitchen. The man who installed the basin drilled through the wall to attach the drain pipe to the piping under my kitchen sink (pictured - the grey tube on the right comes directly from the hand basin, attaching to the accordion pipe). It works ok, but fairly regularly the accordion pipe gets thoroughly mouldy and smelly, at which point I either clean it out or replace it. But this shouldn't be happening. I'm a plumbing rookie but want to replace this myself as it seems like it should be straightforward. But do I need have a trap? Is there a better way to connect it? It's seems amateurish and obviously it's poorly done if it keep moulding up. If I need a professional to do the job, I could go that route too. Advice/input appreciated!

Bill

 

[HERTS P&D]

Did you pay someone to do this work?

Andy

 

[Dan Robinson]

Oh sweet Jesus

 

[John D v2.0]

There needs to be a trap at the basin which presumably there is, then a continuous fall to the underground drain or stack. That accordion will be full of stagnant water due to the uphill bit. The 32mm bit shouldn't be longer then a metre or two if possible.

In your case id get a few rigid fittings and some 40mm pipe from your local plumbing merchant and a 32 to 40mm reduce and see what you can do. If you use compression joints you can adjust as you need, and dismantle later if necessary. Looks like 3x right angle bends would do, but you can usually match up any two pipes with 3x 45s.

 

[Madrab]

That wasn't a plumber that installed that, must have been an accountant with a mask on. A picture under the basin would be good too.

Ideally, all that waste needs re-orientated so you can installed rigid pipe to connect the basin waste up properly.

 

[BxlBill]

Hi guys,
Your replies confirm what I thought! Yes, I did pay somebody to do it -- surprise, the company is out of business now
Thanks for the specific advice which I will take into account though it does sound like if I want to get it right quickly, I should get a professional in. The first guy was from a sort of "jacks of all trades" company which I would never use again even if they were still in business.

 

[Bosswhite]

As John D has outlined its not going to be a difficult job, more common sense ( You do not mention if there is a trap connected to the hand basin, ) just get rid of the Concertina pipework
Take the picture to your local Plumbing merchants and they will give you the fittings you need,

 

[oilboffin]

God if I couldn't do that any better than that I'd top myself get him back and kick him in the sack.Bob