Stuart Turner WC3 Macerator SHower waste

Discussion in 'Plumbers' Talk' started by Dark_KnightUK, May 14, 2021.

  1. Dark_KnightUK

    Dark_KnightUK New Member

    Hey Everyone,

    I was reading the install guide and it tells me this:

    The shower tray (lowest waste outlet) must be a minimum of 180 mm above the base of the macerator, to ensure necessary drainage and must not contain a trap.

    No Trap? how the hell do I get the shower waste plumbed in without a trap?

    I have bought a slimline shower trap from Screwfix
     
  2. FlyByNight

    FlyByNight Screwfix Select

  3. pppmacca43

    pppmacca43 Super Member

    If it calls for no trap, depending on the shower waste u could just take out the internal ‘cup’ part
     
  4. Dark_KnightUK

    Dark_KnightUK New Member

  5. Dark_KnightUK

    Dark_KnightUK New Member

    So looking at the slimline trap I have bought, if I just take out the rubber bit on the inside that acts as a non-return, it will just become a free flow, so essentially taking out the internal cup part?
     
  6. Dark_KnightUK

    Dark_KnightUK New Member

  7. just pumps

    just pumps Screwfix Select

    Does it say from the base, it used to be from pipe centres or a % fall to the unit.
     
  8. just pumps

    just pumps Screwfix Select

    Just read the install sheet, 180 is from the center of the waste outlet (trap) to the center of the inlet and with a 1:33 fall on the 40mm pipe to the unit.
     
  9. pppmacca43

    pppmacca43 Super Member

    yes, if it’s possible to do that
     

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