Plumbing

Sewer smell from toilet

Anonymous user 01/03/2024 - 2.58 PM

We bought a late 60's built house about a year ago. In the master bedroom a small toilet & basin have been installed into what I assume was a cupboard space previously. The flush system is operated electrically into what I assume will be an out of sight macerator. This unit is only used for night time visits to urinate, nothing else. After flushing there is a foul, sewer type smell seemingly emanating from the pan before it refills with water. Any ideas what the problem may be? We do not have a stench pipe attached to the house but I can see where one may have been previously. Edit: Could the system have been fitted with 'anti vac traps' which are failing somewhere? Also, my main bathroom toilet & shower (no bath) is on the ground floor. UPDATE: Thanks for your thoughts and ideas guys. Since posting I got to thinking whether the smell was coming from the small washbasin which seems to be connected to the toilet (if I run enough water, the toilet flushes). I experimented with leaving the basin plug in which appears to have eliminated the problem so far.