Dead legs

Discussion in 'Plumbers' Talk' started by Coloumb, Apr 25, 2015.

  1. Coloumb

    Coloumb Screwfix Select

    Guys - WRAS say 2 x the pipe diameter yet the Ciphe are cool with it at 6.

    What's going on?
     
  2. Coloumb

    Coloumb Screwfix Select

    Anyone?
     
  3. Dave does Gas

    Dave does Gas Screwfix Select

    Maybe if the question was a question that we undersood then maybe an answer would be forthcoming
     
  4. Coloumb

    Coloumb Screwfix Select

    Any given dead leg should be a max of either 2 x the pipe diameter according to Water Regulations Advisory Scheme or 6 x the pipe diameter according to The Chartered Institute of Plumbing and Heating Engineering. That's two professional bodies giving out different info. Nuts.

    https://www.wras.co.uk/consumers/resources/interpretations_and_advice/installation/i21/

    CIPHE dead leg guidelines state that the length of any dead leg should be limited to six times the pipe’s diameter, but even shorter dead legs are preferred. This is known as the six diameter rule. However, in practice, it is both safer and more practical for dead legs to be limited to three pipe diameters in length, as five or six pipe diameters could present cleaning difficulties.
     
  5. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Change the pipe. Have no dead legs!

    Or take the lowest number.

    Mr. HandyAndy - Really
     
    nigel willson likes this.

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