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Discuss Want to move sink into an island in the Plumbing Forum area at UKPlumbersForums.co.uk.

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  1. macker1971

    macker1971 New Member

    I'm considering moving my sink into an island.The sink is currently on the window wall.I have a concrete floor and the drains are 400mm higher outside.I would need to make a channel in the floor for pipework.Is it possible to get rid of the waste if the drains are higher outside my property?If it is possible what would I need to make this happen?What sort of cost would a tradesman ask for this sort of job?
     
  2. Ric2013

    Ric2013 Plumber

    Well, if you're going uphill, then you can't use gravity to drain into the drains if they are higher than the lowest part of your new waste pipe.
    You could fit a Saniflo (pump), but, quite honestly, I feel you are considering something expensive and impractical that will never be as reliable as a simple, well designed, gravity-powered drain.

    If you really must have an island, it is almost certainly possible though.
     
  3. macker1971

    macker1971 New Member

    Thanks alot for the info!
     
  4. rpm

    rpm Trusted Plumber

    Impractical? Please explain why you say that.
     
  5. rpm

    rpm Trusted Plumber

    You do go the pumped route then strongly suggest you download the installation instructions to get it right first time.
     
  6. Ric2013

    Ric2013 Plumber

    The reason I say impractical is that you'd need a pump at the lowest point of your island waste run to lift the waste water to the height of the gravity drainage already in your house. The pump will (eventually) fail and then you'll be paying a plumber to replace it (they aren't cheap) and, while you wait for a plumber, your kitchen sink will not drain. Hopefully it doesn't happen on Christmas day, for example. Impractical isn't really the right word...

    I just have a bias towards creating installations which I know will cost a lot of money to maintain in the future and am very much in favour of keeping things simple and reliable, and cheap and easy to maintain.

    But then it's horses for courses. I recently replaced the failing plastic gutter on my porch with cast iron because it is solid, seals are cheap and easy to find (putty), I like the fact that I can repaint it whenever I get bored with the colour or it starts to look faded, it is an environmentally sound alternative to uPVC, and I'll never have to dispose of it and replace it. Other people want things maintenance free and do not want to be repainting gutters every few years and are quite happy to change the whole lot when it eventually fails. It depends on what is important to you - if you really want an island sink, I wouldn't want to put you off - get one and enjoy it!
     
  7. rpm

    rpm Trusted Plumber

    I think £339 for a new pump after 7 or 9yrs is cheap enough for most people (£48 per yr) and have it serviced in November ;).
     
  8. Ric2013

    Ric2013 Plumber

    £339 is far more than I would be prepared to spend!!!

    But I am seriously tight-fisted, that I know :)
     
  9. Stigster

    Stigster Plumber

    "It was working fine until you serviced it!"
     
  10. rpm

    rpm Trusted Plumber

    That old chestnut doesn't work when you test before starting the job ;)
     
  11. Stigster

    Stigster Plumber

    I learned that the hard way doing oil boiler services. The amount of times I was booked in for a service but it was in fact a breakdown I've lost count. Only once did I not test a boiler before I worked on it and yes, it was really a breakdown, not a service job.

    I won't be caught out like that again.
     
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