The answer to 'difference between drain trap' is that a drain trap is a curved or U-shaped section of pipe installed below a sink, shower, or other plumbing fixture. Its purpose is to hold a small amount of water that creates a seal to prevent sewer gases from entering the home. In contrast, a floor drain is a drain installed in the floor, typically in a basement or utility room, that allows water to drain away from the area.
Drain traps are essential for maintaining good indoor air quality and preventing unpleasant odors, while floor drains are used to remove excess water and prevent flooding. Drain traps require periodic maintenance to ensure the water seal is maintained, while floor drains may need to be cleaned periodically to prevent clogs.