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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
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General: Bath tap issue

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  1.  
    • CommentAuthorRex
    • CommentTimeJul 19th 2024
     
    What ho one and all,

    I have a Ideal Standard Ceraplan B7892AA mixer tap on the bath (https://www.cityplumbing.co.uk/p/ideal-standard-ceraplan-dual-control-2-tap-hole-bath-shower-mixer-with-shower-kit-b7892aa/p/386326)

    Even with softened water, the taps are becoming more and more difficult to turn. I have removed the tap and quite easily dismantled the hot side, cleaned and lube and it works fine.

    The cold side is really difficult to turn but removal is proving to be a challenge. I have managed to round out the brass female Allen socket inside the lever so now, am unable to remove it.

    Any suggestions on how to remove the Allen key and subsequently, the lever.

    Thanks and toodle pip

    Rex
    • CommentAuthortony
    • CommentTimeJul 19th 2024 edited
     
    I would drill it out, remove the lever, take out the tap insert and replace it with a new one, it is possible to disassemble, clean and reassemble the insert but a spare insert is useful to have for next time.

    Stopping the old tap head coming off might mean re tapping the hole and a new screw, or hot glueing it on .

    It could be possible to force the lever off with two wide bladed screwdrivers

    Last resort is two new inserts and two new tap heads not a whole new tap
    • CommentAuthorRex
    • CommentTimeJul 19th 2024 edited
     
    Thank you. Was hoping for a possible different solution but certainly drilling it out seems to way to go. I guess I rounded the hex as it is so well 'welded' in place with limescale, that drilling is the only solution.

    Was intending to replace it but City Plumbing lists it at £327 as a 'clearance' price. Don't think that will happen unless it's made from gold.

    Checked the Ideal Standard site and apparently they have 'improved the design' which is weasel-speak for 'if you have an older, perfectly good model, tough bloody luck.'
    • CommentAuthorRex
    • CommentTimeJul 22nd 2024
     
    M5 x 6mm stainless grub screws ordered. Will buy the cartridge replacements and drill out.

    Thanks for the suggestion.
    • CommentAuthorRex
    • CommentTimeJul 24th 2024
     
    Trying to find the correct cartridges but getting lost in numbers. The official Ideal Standard cartridges are A960462NU and A961010NU but these are amazingly expensive.

    I believe the correct specs are 3/4" 18 x 59. Can find many other cartridges at a more realistic price but most have no details about compatibility with my discontinued tap (B7892AA)

    Since the most site provide limited specs, what exactly so these numbers relate to? I understand the 3/4" but 18 and 59?

    Thanks
    •  
      CommentAuthordjh
    • CommentTimeJul 24th 2024
     
    I have had good service from https://www.tapmagician.co.uk/ Putting B7892AA into their product search takes me to a page with what you need, I believe.
    • CommentAuthorRex
    • CommentTimeJul 24th 2024
     
    Many thanks, good link and it describes the numbers. Guess 18 is the splines and 59 the total height.
    • CommentAuthorRex
    • CommentTimeJul 27th 2024
     
    Fortunately, did not need to drill out the grub screw. In previous extraction attempts, I had kinda round the hex. By trying to drill it out, I exposed a 'new' section of the hex key and managed to remove with an Allen key.

    However, how does one remove the cartridge when it has 'welded' itself into the body? I have soaked with vinegar, squirted with Plus Gas, had a cuppa to allow the magic to work, but it will not budge. All I am achieving is rounding the hex fitting.

    Are there special plumbers sockets to get a good grip on recessed bolts?
    • CommentAuthorRex
    • CommentTimeJul 27th 2024
     
    Just to complete this thread, although i was unable to remove the cartridge, plenty of vinegar and silicone sprayed onto the moving part and lots a back and forth movement, and it is now running very nicely. Not the best long term solution but considerably better than previously.

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