Ongoing intermittent sewar gas smell in house despite plumbers not finding any leaks! Smell can go for days then return for a few hours then go again! Will this help?
There could be a number of reasons causing the sewer smells. An air admittance valve will only help if there is pressure within the system that is sucking the water from waste traps. You will also need to ensure that the drainage run is connected to main drains and not to a sewer treatment system as you will need to leave a open soil pipe for venting if it is connected to a treatment system. For further information please contact technical@floplast.co.uk
Answered by: FloPlast Ltd Tech Team
Date published: 2020-07-31