How to raise floor waste by 10mm?

[nika]

 

Hi,

i need a raise a floor waste by 10mm in a wet area before doing screed. How can i do this? Is their a extension i can buy? 

[JacobZ]

Hi @nika,

To comply with plumbing standards, you'd need to connect the waste pipe to a puddle flange that is rebated into the concrete. You can then waterproof and screed over the top.

As this is considered plumbing work requiring a licence, I'd suggest contacting a plumber for their assistance with this work.

Let me know if you have any further questions.

Jacob