Yes, it contain methane.
Harmful enough to cause several types of cancers and in a worse case it can cause an explosion along with other dreaded diseases
There are several ways but be really careful as methane and other highly flammable sewer gases can cause a violent explosion and death by asphyxiation
There are several ways but be really careful as methane and other highly flammable sewer gases can cause a violent explosion and death by asphyxiation
I'm not a professional plumber, but fairly experienced with plumbing. From what I understand, a p-trap allows for a small pool of water that acts as a barrier between the nasty stuff down your drain, ie. poisonous gases and smells. It also can catch bigger stuff that shouldn't be going down the drain and block it in a generally easily accessible spot, versus clogging up further down the line. It is certainly required by plumbing codes and should the sewer/septic gases build up they can cause illness/death or cause an explosion.
To prevent dangerous waste /sewer fumes from entering a structure
methane gas
Yes
ummmmm............. your not supposed to i suggest you get that checked!!
Yes, sewer gas can be explosive as it is generally a combination of methane, hydrogen sulfide and a variety of other noxious gases.
It allows sewer gases to safely escape.
An air admittance vent is a mechanical sewer vent which allows air to enter into the sewage system but does not allow exhaust of sewer gases.
Code there doesn't always require a 'P' trap to hold water and thus block sewer gases from backing into the house.