Pros and cons ref. siphon or flap vave in WC cistern?

Discussion in 'Plumbing and Central Heating' started by --tom, 20 Aug 2008.

  1. --tom

    --tom

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    What are the pros and cons ref siphon or flap valve in a WC cistern?
     
  2. JohnD

    JohnD

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    syphons wear out annoyingly

    flaps are quiet and give a good flow. Some people say they leak when they wear out, so see if there is a spare washer you can buy when you fit it, to save having to take it out again.

    If the flushing handle is on the front of the cistern you can use it again, if the handle is on the end you need the flapper with a push button.
     
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  4. oilman

    oilman

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    They both wear out in the end. This is in common with everything else that has moving parts. When a syphon wears out it stops passing water, when a flap valve wears out, it leaks nd costs you money if you are on a meter. The leak may not be noticed but will still increase your water bill.
     
  5. --tom

    --tom

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    Thank you both for your replies. Good info.
     
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  7. londonboy123

    londonboy123

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    i have found that drop valves (push button) after a while dont give a very good / clean flush. and siphons are like;y to be longer lasting. also with a b & q push button (the type with the plastic leve linking the valve to the button ) you can fit these on any toilet - remove the old handle connection if changing for an old siphon type.

    i agree they leak when they wear somehow! my sister had a constant dribble into her pan and it was like it for weeks until she realised!! what a waste of water ! like a tap constantly running!!!
     
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