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Max Length for toilet and bathroom waste pipes?

Discussion in 'Plumbing and Central Heating' started by chelseablue1979, 29 Aug 2010.

  1. chelseablue1979

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    Please help. We are currently looking at a project to convert our existing bathroom into a bedroom, with a new bathroom being created on the opposite side of the property.

    We have significant issues with installing a new soil stack and considering running bath/toilet/ sink waste pipe on the outside wall of the property down to the existing soil stack as this will enable us to achieve the required fall for a soil waste pipe with a total length of approx 7m. Looking at the building regs part H it appears a max length of 6m exists for branch connections, but the document also makes reference to exceeding this distance if the pipe itself is ventilated? I am assuming this is in addition to normal soil stack ventilation?

    Does anyone have any experience with a similar situation if so any advice would be gratefully received.
     
  2. seco services

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    extend waste by adding air admittance valves to the pipework.
     
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  3. chelseablue1979

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    Thanks for the reply. Soryr to be cheeky but do you also know if I will need to involve building control/regs if I am not installing a new soil stack and merely plumbing in to the exisiting stack?
     
  4. seco services

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    yes your changing the room.
     
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