The answer to 'difference between drain trap' is that a drain trap is a U-shaped pipe section installed under a sink, tub, or other plumbing fixture. Its purpose is to maintain a water seal that prevents sewer gases from entering the home. In contrast, a floor drain trap is a similar U-shaped pipe installed in the floor to collect and trap water, preventing odors from the sewer from coming up through the drain.
Drain traps are essential for proper plumbing function and preventing unpleasant sewer smells. They work by creating a water barrier that blocks gases from traveling back up through the drain. Floor drain traps serve a similar purpose for floor drains, keeping the basement or utility room free of sewer odors.