Sounds like the trap in the sink is getting the water pulled out of it. It probably wasn't vented properly.
YES, you do need a trap. Usually the bathtub drain is on the same sewer line as the nearby toilet.The smell from the toilet's discharge will sneak up through the bathtub's drain line without a trap ... not pleasant!.
Either you have a blockage present or your vents on your sewer lines have become blocked or you need to install more vents.
It could be that the condesate drain line has been connected to the wastewater/blackwater stack. The trap (hopefully installed) preventing sewer gas from moving up the condensate line may have dried out. If dry, sewer gasses are no longer blocked by the hydraulic seal... resulting in a nasty smell when the unit is turned on and the fan kicks in. Just a thought.
Only if you want to smell the fumes all the time. Code says it should be through the roof or above the edge of the roof.
Yes, my brother's house in CT. has the same issue and the cause is still undetermined. I initially thought that the house was so tight, that the fireplace "draw" was pulling the gas right thru the traps. That does not appear to be the case as the smell doesn't appear to be coming from the sink. He doesn't know of any vent inside the house, that could explain this. I'm going to suggest that he crack a door or window in the family room and see if that short circuits the draft and has any effect.
To effectively eliminate sewer smell in your basement, you can try these steps: Check for any leaks or cracks in the sewer pipes and repair them. Ensure that all drains are properly sealed and functioning. Clean and disinfect the drains and pipes using a mixture of baking soda, vinegar, and hot water. Use a sewer gas odor eliminator or deodorizer to neutralize the smell. Consider installing a sewer gas vent pipe to improve ventilation and prevent odors from entering your basement.
You may need to replace the wax seal under the toilet.
The sewer smell in your bathroom could be caused by a dried-out P-trap, a clog in the plumbing system, a damaged sewer vent pipe, or a malfunctioning wax ring seal around the toilet.
Exposure to sewer gas smell in a home's basement can pose health risks such as respiratory issues, headaches, dizziness, and in severe cases, nausea and vomiting. Sewer gas contains harmful gases like methane and hydrogen sulfide, which can be toxic when inhaled in high concentrations. It is important to address the source of the smell promptly to prevent health problems.
If you are on a septic system, it is plugged.
To effectively stop sewer smell from the vent pipe in your home, you can try installing a vent pipe filter or using a sewer gas odor eliminator. Additionally, ensuring that the vent pipe is properly sealed and free of blockages can help prevent the smell from entering your home.
Change the wax seal under the toilet
you most likely hve a bad seal at the wax ring.You did replace it when you replaced they toilet diden,t you?
A sewer smell in your basement when it rains could indicate a problem with your sewer system or plumbing. It could be due to a damaged sewer pipe or a blockage causing sewer gases to seep into the basement. It is important to have a plumber inspect and address the issue to prevent any further damage or health hazards.
new york smells like a sewer,most people explain it as a toilet bowl
Most likely a drain has dried out and there is no water in the trap to stop the gas from coming up. Sink, shower, or main floor drain.
A sewer smell coming from your sink could be caused by a dried-out P-trap, a clog in the drain, or a problem with the sewer vent.