Here's why:
* Preventing Sewer Gas: A trap is a U-shaped pipe that holds water, creating a barrier that prevents sewer gases from entering your home. Without a trap, these gases could easily travel up the drainpipe and into your bathroom.
* Preventing Backflow: A trap also helps prevent backflow. This is when wastewater from the sewer system can flow back into your plumbing system, potentially contaminating your bathtub.
* Maintaining Drainage: A trap helps ensure proper drainage. If a bathtub doesn't have a trap, water can slowly evaporate, leaving behind a residue that can clog the drainpipe.
Important Note: It's essential to have a trap for every plumbing fixture, including bathtubs, sinks, and toilets.