hi long time listener first time caller
come across a question regaurding waste pipe in exam? what is the maximum lenght for a untrapped waste pipe discharging into a floor waste? question was in nov 2012

1.2m
2.5m
3.0m
6.0m
10.00m
 no codes were given for reference

Linkback: https://www.plumbers.nz/study-base/70/lenght-of-waste-pipe/1871/

Hi guys, are you sure that is correct? If so what fall would be required for the various size pipes that we use on a 10mtrs waste pipe, Cheers

^^^^ that is my understanding also