Smell of Methane gas from septic tank

[Humpy]

A one inch vent pipe should be fitted. The concrete slab top should have a one inch hole for the pipe.

 

 

Edited August 10, 2020 by Humpy
pic added

[thaibreakfast]

On 8/10/2020 at 9:30 AM, thaibeachlovers said:

Do they have septic tanks in cities in LOS? More likely it's just the toilets stinking. I've unfortunately had to use a lot of evil smelling Thai toilets.

That's a problem with the traps. For some reason the curve in the elbow traps in thai toilets can be very shallow so it's easy for there to be insufficient water to stifle the smell of gas.

Edited August 11, 2020 by thaibreakfast