By rick ensley sureseal product manager rectorseal corp.
Floor drain gas.
It comprises a mixture of gases including hydrogen sulfide ammonia and more.
Remove the grate that covers the opening and make sure there s a plug inside the drain bowl.
Sewer gas rising from floor drains might be an unhealthy nuisance for commercial building owners and homeowners but for plumbing service contractors it should be a breath of fresh air for aftermarket and service call add on sales that increase.
If the plug is missing there s a direct path for sewer gas to bypass the water trap.
The hydrogen sulfide in sewer gas is what gives it.
Check for a cleanout plug inside the floor drain to get rid of a sewer smell in bathroom or laundry room.
Floor drain sewage odor problem troubleshooting.
Sewer gas is a byproduct of the breakdown of natural human waste.