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Discuss Connecting washing machine & dishwasher outlets in the Plumbing Forum area at

  1. Hodor

    Hodor New Member

    Have recently had a new sink fitted. The trap (is that the right word?) underneath the old sink allowed for connections from the waste outlets on both the washing machine and the dishwasher but the new fitting has only provided one outlet, currently connected to the washing machine (far right on pic).

    I had hoped that I'd be able to find some sort of Y-connector, again not sure that's the right word, so that both waste outlets could be connected in the same place, but I've not been able to find anything suitable in Wickes, B&Q etc and not received any helpful advice at all there either.

    Does anyone know if such a thing is available and if so where I can get it from. If not, what would be the simplest way of solving the problem.

    Thanks in advance.


  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    • Like Like x 1
  3. Hodor

    Hodor New Member

    Many thanks for responding. Am I right in thinking that the end of the connector furthest away from the outlets is closed off. I couldn't tell from the pic on ebay.
  4. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    no its not it would replace one of your drop tubes eg

    depending on the length

    • Like Like x 1
  5. Hodor

    Hodor New Member

    Ah, I hadn't understood that. I had been hoping there'd simply be a Y-shaped fitting available that would have 2 outlets coming in instead of 1 at the far right where the grey hose of the washing machine outlet currently connects so that the existing pipework could be left undisturbed.
  6. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

    • Like Like x 1
  7. Hodor

    Hodor New Member

    Oh right, I hadn't realised that was a possibility but I can see it makes sense. As you've probably gathered I know next to nothing about these things so appreciate the info.
  8. Riley

    Riley S. Mod Trusted Plumber GSR Top Contributor!!

    Replace the trap to one with a double spigot or cut a spigot in if it’s possible on the waste pipework after the double trap. I wouldn’t say you have enough room on the trap itself
  9. AMGasServices

    AMGasServices GSR

    I’d take a slightly different approach tbh.

    I’d cut the pipe after the bend on the waste (pipe going to the drain) add a tee, then branch off two points one for washer and other for dish washer.

    That’s because if the sink waste was/is blocked the place may get flooded while using the white appliances.
  10. Hodor

    Hodor New Member

    Have to admit to being a bit confused now as to what's the best course of action. I was going to go with replacing the drop tube on the right with a Y-connector having two spigots, one for the washing machine and the other for the dishwasher. Is that not recommended?
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