One of them is to prepare a mixture of half a liter of warm water 200 ml white vinegar and 100g of sodium bicarbonate or baking soda and then pour it down the drain.
Adding water didnt fix the smell in the floor drain.
Most of the time the sewer smell is caused because the water in the p trap has dried up or evaporated.
Every floor drain has a cleanout plug which provides a direct path from the drain to the sewer.
If the u bend isn t the problem you can try out some popular home remedies to fix a bad smelling drain.
If the plug is missing there s a direct path for sewer gas to bypass the water trap.
Hot or boiling water is good for your drains.
To fix this problem pull up the drain cover from the drain.
Smelly floor drain solution 3.
Leave it to act for about 30 minutes and then pour some hot water into the drain.
If this plug is missing the area around the drain will quickly fill with sewer gas.
The p trap is located under your concrete floor and when it dries up it will allowing the sewer gases to enter into your home.
This helps to melt hardened dirt that can be causing odor to come from your drains.
But simply laying down a thick piece of plastic or perhaps taping it down to the floor on three of its four sides will stop nearly all sewer gas leakage but still can permit water to enter the drain if there is standing water on the floor.
Install an add on trap seal device.
Take a gallon of tap water and dump it down the floor drain.
Do this about 3 to 4 times every year to keep your drain traps in good shape.
Check for a cleanout plug inside the floor drain to get rid of a sewer smell in bathroom or laundry room.
This will re prime the trap seal and block that nasty sewer gas from getting past.