In architecture, an English Water Closet (WC) with a P-trap is a type of toilet system designed with a P-shaped bend in the waste pipe, which serves to prevent foul odors from rising back into the bathroom.
The P-trap holds a small amount of water after each flush, creating a seal that blocks gases from the drainage system. This design is particularly common in bathrooms where the waste outlet is directed through the wall rather than the floor, making it ideal for installations on upper floors or where floor penetration is not feasible.
The English WC with a P-trap is known for its efficiency, ease of maintenance, and contribution to improved hygiene and comfort in modern sanitation. It is widely used in residential, commercial, and public buildings, reflecting thoughtful integration of functionality and cleanliness in architectural design.
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Image of English WC with P-trap detail and downloadable (in DWG) link below
English WC with P-trap detail drawing – 1
An English WC with P-trap in construction is designed with specific components to ensure proper functionality and hygiene. Here’s a detailed description of its structure:
- Water Closet (WC) Bowl: The main ceramic fixture where the user sits. It connects to the P-trap at the base.
- P-Trap: A curved section of the waste pipe that forms a “P” shape, holding a small quantity of water to create a seal that prevents sewer gases from entering the bathroom.
- Inlet Pipe: Supplies water from the flush tank (cistern) to the bowl, ensuring proper cleaning and disposal of waste.
- Outlet Pipe: Connected to the P-trap, this pipe directs waste horizontally through the wall and into the soil pipe or drainage system.
- Flush Tank/Cistern: Mounted either directly on the WC (close-coupled) or on the wall (concealed or high-level), it stores water for flushing.
- Vent Pipe (Optional): Provides ventilation to the drainage system, balancing pressure and reducing odors.
- Sealing Ring/Gasket: Ensures a watertight connection between the WC and the waste pipe, preventing leaks.
- Floor/Wall Fixing: The WC is secured to the floor or wall using anchor bolts and sealed with a waterproof sealant.
This system is ideal for bathrooms where horizontal waste outlet installation is preferred, commonly used in buildings with wall-mounted drainage systems.
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