Super fast shower waste

Discussion in 'Plumbers' Talk' started by Bad gowfer, Aug 12, 2019.

  1. Bad gowfer

    Bad gowfer New Member

    we have a new shower fitted. The shower tray has a bevel and a rectangular removable waste cover. We have removed the cup that was in the waste as the water wouldn’t drain fast enough. Still the water manages to get past the shower screen edge and soak the floor. Is the only option to put an edge round the unscreened part of the shower tray or is there a waste which could deal with the volume of water. Thanks
  2. Heat

    Heat Well-Known Member

    Has the waste pipe been installed correctly, terminating properly and with correct gradual fall and supported fully?
    Often they are installed wrong and water will back up.
    No good if waste has no fall or has a dip in middle which will fill with water and airlock
    kiaora, Mike83 and just pumps like this.
  3. just pumps

    just pumps Well-Known Member

    Did the old shower drain ok and was a new pipe fitted or the old one altered in any way?
    Was a different type of shower fitted.
    Heat and Mike83 like this.
  4. DIYDave.

    DIYDave. Well-Known Member

    Get the installer back as shower not fit for purpose

    Who supplied and decided on spec for shower and tray, etc

    Is there a particularly massive flow of water due to loads of water pressure or 3 bar pump and/or large ‘ rainfall’ shower head fitted

    Maybe a high flow waste trap was needed but not fitted or any of the above issues as well, ie, poor install

    Have you been in touch with the installer and how long ago was shower fitted
  5. WillyEckerslike

    WillyEckerslike Well-Known Member

    The 'cup' referred to may be an integral part of the waste, designed to act as a trap preventing foul odours escaping.
  6. The Teach

    The Teach Well-Known Member

    how long ago ?

    every shower drain/trap has to meet the minimum british standard or the european equivalent for water discharge ;)

    Some adverts for shower drain/traps can mention,high flow,high discharge capacity,super fast discharge etc. Thats all advertising !

    Usually the lower shower tray profile demands the best shower drain installation with appropriate materials,its all easily fixed but can be costly :(
  7. Bad gowfer

    Bad gowfer New Member

    The waste is about 8 ft long with a drop of about 2 ft. It is a large shower head so would imagine that there is quite a water flow although it is a gravity shower. I was just wanting to know if there are any high spec waste that might make a difference
  8. koolpc

    koolpc Well-Known Member

    If new, ask fitter to come back to sort out.
  9. The Teach

    The Teach Well-Known Member

    which shower waste is fitted ?

    As an example some advise they can shift 25 L/min But for that discharge they need 20mm a constant (head) of standing water above the shower waste.

    tbh,looking for a debris/air blockage would be the first investigation ;)

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