One of the biggest advantages of stainless steel and brass bathroom floor drains is that they are specially designed to trap waste and prevent odors from escaping. However, over time, your bathroom floor drain can start to emit unpleasant smells that can be quite difficult to get rid of. If you're dealing with a smelly bathroom drain, there are a number of things you can do to solve the problem.

One of the most common causes of bathroom drain odor is a buildup of hair, soap, and other debris in the drain. To remedy this, you can try pouring boiling water down the drain to help dissolve any built-up gunk. Alternatively, you can use a plunger to force out any trapped debris, or a plumbing snake to remove blockages that are deeper in the drain.
Another common culprit of bathroom floor drain odor is the drain trap. The drain trap is a curved pipe that sits beneath the drain and is designed to trap water and prevent sewer gases from escaping. If the trap dries out, however, these gases can start to escape, leading to a foul odor. To fix this, simply pour some water down the drain to refill the trap.
If neither of these solutions work, it may be time to call in a professional plumber. A plumber can use specialized tools and equipment to inspect your drain and determine the root cause of the odor. They can then recommend the appropriate course of action, which may include replacing the drain altogether.
In conclusion, a stainless steel or brass bathroom floor drain is an essential component of any modern bathroom. It is important to keep your drain clean and functional to prevent unwanted odors and other issues. If you're experiencing a smelly bathroom drain, be sure to try some of the above-mentioned remedies, and consult a professional plumber if necessary. With a little bit of attention and care, your bathroom drain can continue to serve you well for years to come.