Hi
I've got a recently built extension with a bathroom. The shower trap is letting sewerage smells come up from it. I've been doing a bit of research and I'm thinking that the issue may be that the soil stack is not vented. The waste from the shower, bath and basin connect to this stack on the outside wall. See photo attached.
Can anyone advise, should the soil pipe have been fitted with a vent at the top or is there ever a reason why a vent would not be fitted ?
If a vent is needed does it need to be added at the top of the soil pipe on the outside wall or would it be possible to fit and internal vent somehow?
I've got a recently built extension with a bathroom. The shower trap is letting sewerage smells come up from it. I've been doing a bit of research and I'm thinking that the issue may be that the soil stack is not vented. The waste from the shower, bath and basin connect to this stack on the outside wall. See photo attached.
Can anyone advise, should the soil pipe have been fitted with a vent at the top or is there ever a reason why a vent would not be fitted ?
If a vent is needed does it need to be added at the top of the soil pipe on the outside wall or would it be possible to fit and internal vent somehow?