What a puzzle?

Discussion in 'Plumbers' Talk' started by Mountain Man, Oct 12, 2009.

  1. Mountain Man

    Mountain Man New Member

    Just replaced a Grohe flush valve in a customers toilet which was leaking. On examination of the old silicone seals, I find the silicone material had absorbed water producing blisters. As I can't resist popping a blister, I took a needle to them to confirm they did indeed contain water and not silicone oil. There is no evidence of chemicals being used in the cistern. I was wondering if anyone else had experience of this phenomenon?
     
  2. G Brown

    G Brown New Member

    Very common. I carry spare dump valves on my van.They are a regular change.
     
  3. Mountain Man

    Mountain Man New Member

    Thanks for that Mr Brown. I just couldn't figure out how silicone can absorb water to the extent that blisters will form, and why this material should be used for seals in the first place? I await in anticipation for the reply from Grohe to my e-mail query.
     
  4. Mountain Man

    Mountain Man New Member

    P.S. Anyone know of an online source of these seals? It took me travelling to 8 plumbers merchants to find a new assembly.
     
  5. natrosol

    natrosol New Member

  6. Mountain Man

    Mountain Man New Member

    WOW! Thanks Natrosol. I've added this to my bookmarks.
     
  7. Dick Puller

    Dick Puller New Member

    Thanks 'nostrols' good link!!
     
  8. imran_

    imran_ New Member

    Blimey - that's the most expensive "rubber" I'll ever buy!!
     
  9. mattyharmonic

    mattyharmonic New Member

    What you saying you pack the plastic.... i go bearback meself

    ***

    cheers
     
  10. alpineskier

    alpineskier New Member

    @matty

    In that case, I hope both you and the bear (sic) are both equally happy.
    Will you be posting more of your bestial exploits on this forum ??
     
  11. mantor

    mantor New Member

    kinnel, 5 and 6 quid for a diaphragm. You could make 40 out of 1 rubble sack if you were a black belt in origami.
     
  12. Dreadnaught Heating

    Dreadnaught Heating New Member

    Blimey - that's the most expensive "rubber" I'll ever buy!!

    Thats what I thought when I looked at the washer for a Geberit impulse 260 valve £7.50? ***

    I'll try Geberit UK spares dept before placing an order elsewhere.

    DH
     
  13. natrosol

    natrosol New Member

    Geberit charge 5 pound postage and packaging plus vat on top, plus extra for next day delivery,so local merchant is probably still best place to go-if they,ve got them lol
     

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