Missing one trap or two?

[Scotjam]

Hi,

My first post here.

So builder has finished his work but I think a trap is missing from the wash basin and the washing machine waste. Which explains the smells that come every now and then.

I'm thinking I could add an inline osma siphon to each or one shared between the two. Or an s trap shared.

I've attached a photo. From the right side the pipe coming in is from the wash basin which has no trap.

Any pointers? Or best to call a plumber.

 

[Harvest Fields]

Can you take a picture of the other side of the wall please, and builder you say??

 

[ShaunCorbs]

Get the builder to get a plumber and tell him to stop messing around with plumbing

 

[andyplumber]

As above we could do with a picture of the other side but if it was me I would repipe and fit a washing machine trap and anti vac trap on the basin

 

[Scotjam]

It's just the wash basin with nothing under it. I could take a better picture tomorrow, this is what I've got on my phone at the mo.

Cheers all and a happy new year when it comes

 

[Ric2013]

You can do lots of things, but simple answer is what Shaun said. Osma waterless traps (i.e. HepvOs) really are very good for solving problems, but are noisy and will, I expect, eventually wear out. I've nothing against builders doing small bits of plumbing work, but your builder has not the basic knowledge of even a DIY manual/Google search. If he really can't be bothered even to do that level of research, he really should get a plumber in, and I don't say this very often.

 

[Harvest Fields]

Just alter the pipe slightly and fit a washing machine stand pipe.

 

[Scotjam]

Oops. I now realise that shiny thing under the basin is a trap. Doh! So I've added the s trap on to the other side so I can add a washing machine waste pipe and I think that's it!

 

[ShaunCorbs]

You will need a stand pipe (going to roughly the same height as before)

Also the pipe looks like 11/4 (32mm) ???

 

[Harvest Fields]

Again I say, builder Aaaaaa.

 

[Ric2013]

...because a sink and washing machine need 1 1/2" waste pipework. Anything less is below industry standard and will probably cause trouble.