DIY Doctor UK DIY Forums

Posted: **Wed Sep 27, 2023 7:29 am**

Hi,
When I flush our downstairs toilet there is a sewage smell in the upstairs bathroom.
There is no obvious blockage.
Any advice please

Posted: **Thu Sep 28, 2023 10:02 pm**

Hi cmw,
You need to check that you have a vent pipe at the highest point of you home system.
Regards S

Sewer smell upstairs when flush downstairs