The answer to 'types of P-trap' is that there are several common types of P-traps used in plumbing systems. A P-trap is a curved section of pipe installed under a sink, tub, or floor drain to create a water seal that prevents sewer gases from entering the home.
The most common types of P-traps include the standard P-trap, the drum trap, and the bottle trap. The standard P-trap is the most widely used and consists of a U-shaped pipe that holds water to block odors. Drum traps have a larger water capacity and are often used in older plumbing systems. Bottle traps have a narrower design and are commonly used for pedestal sinks and other fixtures with limited space.