If you think you smell sewer gas in your bathroom, it could be that a sewage blockage is in your pipes, causing the sewage to back up in the lines.
The sewer is in the bathroom in the park.
This is not advisable beside not being legal, This may potentially cause sewer gas leak into your resident.
No, something more basic is the cause of that.
on the floor of the bathroom which is in the park
In a sewer in the bathroom were Sir rebel was defeated
trap seal loss or poor venting
Change the wax seal under the toilet
It is quite possible that your main pipe to the city sewer system has become blocked somewhere between the basement floor drain and the man city sewer line. Could be a result of items flushed down the toilet(s), or damaged pipes as a result of age, tree roots searching for water, etc. Suggest having your main access to the city sewer system checked by camera.
Sewer smell from toilets or some other problem
Do you have an upstairs tenant or the sewer is backing up.
Both restrooms (boy and girl) lead to the sewer where Ratman is hiding.