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How to remove bath tap cartridge with no grub screw

Discussion in 'Plumbing and Central Heating' started by Joni2019, 2 Apr 2019.

  1. Joni2019

    Joni2019

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    Morning.

    I have a dripping bath tap that's driving me insane. Fixed the odd tap before but it was simple, this one is challenging me.
    Both hot and cold are quarter turn and the leak is from hot (left hand side). The hot tap turns further than it should do when shutting off, so maybe the tap is damaged hence why it's dripping.

    I read it could be the headgear cartridge that needs replacing so I am willing to give this a go... however, after removing the handle It appears there is no grub screw inside to release the tap head to access the cartridge. There is no cap to pull off of the top either.

    Please see images.

    Thanks for any advise. 20190402_083657.jpg 20190402_083717.jpg
     
    Last edited: 2 Apr 2019
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  3. blup

    blup

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    It might be that the heads are not serviceable, can you access the underside to remove/replace the whole tap if need be?

    Blup
     
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  4. Joni2019

    Joni2019

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    Thanks for your reply Blup. I wasn't aware that some taps were unservicable... would explain things. I took the side panel off a few weeks back and it looked like there was very little room for maneuver as i couldnt even see the taps from underneath. I will take the panel off again and take a picture, and would appreciate your help from there. If the bath needs to come out then it needs to come out.

    Thanks
     
  5. Joni2019

    Joni2019

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    With side panel off. I can barely get my arm through the gap.
     

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  6. Mottie

    Mottie

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    I've just changed our bath. The one we had, had the taps halfway along on the wall side. It would have been impossible to have got them out with the bath in situ and I smashed the bath to pieces to aid removal. The new one had the taps fitted at the end. Looks like a bath out job I'm afraid unless there's a hidden grub screw round the back of the tap or the head just levers off. I'd give it a go before taking the bath out - what have you got to lose?
     
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  7. just pumps

    just pumps

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    Cut access hatch if it is a room the other side of the wall.
     
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  8. Jackrae

    Jackrae

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    It may be that the heads can be removed (pulled off) if you first turn the taps to the full-on position.
    Try pulling on the valve heads and slowly turn them whilst continuing to pull.
    You might just feel a sweet-spot where the head tends to give a little which would indicate where they need to be to permit pulling off.
    Or it could be that corrosion 'snot' is locking the head onto the valve spindle.
     
    Last edited: 2 Apr 2019
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  9. Keithmac

    Keithmac

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    I levered the head off our 1/4 turn tap, then the cartridge unscrewed from the top.

    Worth a go, bath out or access from other side of wall as had been said otherwise..

    20190402_183736.jpg 20190402_183749.jpg 20190402_183808.jpg
     
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  11. Try turning the head, grub screw could be located further roundand some heads just pull off.
     
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  12. Joni2019

    Joni2019

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    Thanks for the replies guys its given me some hope. There's no way the miss will allow me to knock through the master bedroom wall into the bathroom, so that's out the question but a very good idea.
    I've turned the tap head fully round and defo no grub screw hiding in there so i'm just hoping it is a PULLY OFF-ER...like the picture below from Keithmac.

    Just going to get in the bath before i end up destroying it lol.

    Will keep you posted. Thank you.

    Joni
     
  13. just pumps

    just pumps

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    Somehow (funell & small tube?) get some kil-roc descaler through that hole and leave before you start pulling the head off, also be ready for it suddenly come off so don`t go banging your head or putting your back out when it does pop off. ;)
     
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  14. Joni2019

    Joni2019

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    Ok thanks. Will buy some descaler tomorrow and leave it for a few hours. Good shout.
     
  15. Jackrae

    Jackrae

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    Get a plastic syringe from a chemist (needle not required) and you can pressure blow it in
     
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  16. Joni2019

    Joni2019

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    Great idea. I think we have something simular that should work
     
  17. JimCrow

    JimCrow

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    Pour a kettle of boiling water slowly over the head, put cold wet cloth around the base of the tap first.
     
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