Floor drains are plumbing fixtures installed under the floor of a building or structure. Their primary purpose is to collect and remove standing water. They can vary in diameter from two to twelve inches, but most floor drains are four inches in diameter or smaller. They can be either round or rectangular. 

Floor drains usually slope downwards to prevent water from pooling and clogging. However, small items can get into the drain sump over time, reducing the space for waste to flow. This can lead to a large buildup of slime on the floor, resulting in a puddle around the floor drain.

Another key component of a floor drain is the trap. Similar to traps found under bathroom and kitchen fixtures, a floor drain trap is a U-shaped pipe that is filled with water. The water in the trap prevents sewer gas from backing up and prevents the smell from getting into the home. To prevent a sewer smell, you should regularly pour water into the floor drain. However, this will help keep the trap from drying out.

Floor drains are most often found in commercial restrooms, but they can also be found in basements, kitchens, and refrigerator areas. They can also be found in locker rooms, laundry facilities, and near swimming pools. They help direct water from different sources safely to sewers or municipal storm drains. If you're not comfortable using a mechanical drain cleaning machine, you should consult with a licensed plumber. They should be able to unclog even the worst clogs.

Another common floor drain defect is a missing cleanout plug. If you don't see this plug, you can simply install a rubber plug to replace it. These are essentially rubber stoppers that you can remove and replace, but they're susceptible to rusting and corrosion. Make sure to replace them if they're damaged or rusted, or else they'll be useless. This way, sewer gases can't get into your home.

SQA-321 Warranty 10 years Customizable Brass floor drain with 50mm outlet

Product Name:	Brass floor grates
Item No.:	SQA-321
Size:	85*85mm
Outlet:	50mm
Material:	Brass
Weight：	330g
Surface Treatment:	Chrome Plated
Packing Details:	1pc / polybag / inner box / Export Outer Carton / Pallet
Guarantee:	Warranty 10 years