Soil/vent pipe

[carlsbergy]

Hi, I am fitting a bathroom and the soil pipe that the toilet goes into continues up the wall into the loft and through the roof to vent. I would like to re configure the bathroom and it would be helpful if I could remove the 4 inch pipe going up the wall to free up space

Could I replace with a mushroom vent cowl?

Thanks in advance

 

[Hugh Jaleak]

Is this the only vent on the property? If so, it will need to remain open to atmosphere otherwise you could start experiencing problems with pressure fluctuations is the drainage system. If you can remove it, the pipe will need to finish higher than the spillover level of the highest appliance, (usually the basin), and be fitted with an air admittance valve, (AAV).

 

[carlsbergy]

Thanks Hugh, much appreciated

 

[Hugh Jaleak]

No worries. Glad to help. People think its fine to remove events for aesthetic or cost reasons, then when there's an issue with the system they wonder why. We are experiencing a lot more issues at work when sewer cleaning, with blowbacks into properties as the pressure cannot vent.