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    Bathroom plumbing, check valves and regulations

    Hi, I’m in the process of remodelling my bathroom. Currently at the stage of plumbing the bath and wall hung WC. I’m planing to install a toilet douche (thermostatic, it will need hot and cold supply) and for the bath, I have an overflow Hudson Reed filler. I would like to know if these two...
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    Geberit frame bend angle

    Hi, I have installed the waste pipe as seen in the attached photo, making sure I have a fall of 1:4 to 1:3 from invert of the bend at the frame to the invert of the 4” pipe at the face of the bend ( the distance is 1400mm) that goes into the outside soil pipe. However, I’ve just seen few...
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    Toilet waste fall

    Hi, the horizontal length of 4” pipe from cistern frame to the face of the 92.5 degree bend which goes into the main stack pipe, is 1400mm and has a fall of 45mm i.e 1:31.6, is this okay? I’m aware 1:40 is the standard. See attached for more details. Also the joint of the bend and the 4inch...
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