1. Introduction
This manual provides comprehensive instructions for the proper installation, operation, and maintenance of your Cornat T317506 Odor Trap Siphon Cup. Please read this manual thoroughly before installation and retain it for future reference.
The Cornat T317506 is a plastic siphon cup designed for washbasins, featuring an adjustable connection tube and a wall rosette. It is engineered to prevent unpleasant odors from entering your living space by maintaining a water seal within the trap.
2. Safety Information
- Always turn off the main water supply before beginning any plumbing work to prevent water damage.
- Wear appropriate personal protective equipment (PPE) such as gloves and eye protection during installation.
- Ensure all connections are securely tightened to prevent leaks. Do not overtighten plastic components.
- If you are unsure about any step of the installation process, consult a qualified plumber.
- Keep small parts away from children to avoid choking hazards.
3. Package Contents
Verify that all components are present before beginning installation:
- 1x Cornat T317506 Odor Trap Siphon Cup (main body)
- 1x Adjustable Connection Tube
- 1x Wall Rosette
- Sealing Washers (various sizes as required for connections)

Figure 1: Overview of the Cornat T317506 Odor Trap Siphon Cup, showing its white plastic construction and main components including the vertical inlet, horizontal outlet, and the cup-shaped trap body.
4. Setup and Installation
Follow these steps for proper installation of the siphon cup:
- Prepare the Drain: Ensure the washbasin drain outlet is clean and free of debris.
- Connect to Washbasin: Attach the upper part of the siphon cup (inlet) to the washbasin drain outlet. Use the appropriate sealing washer and hand-tighten the nut.
- Assemble the Trap Body: Securely attach the cup-shaped trap body to the inlet section. Ensure the sealing washer is correctly seated.
- Connect to Wall Pipe: Insert the adjustable connection tube into the wall drain pipe. Adjust the length and angle as needed to align with the siphon cup's outlet.
- Secure Outlet: Connect the siphon cup's horizontal outlet to the adjustable connection tube. Use the provided nut and sealing washer, hand-tightening for a secure fit.
- Install Rosette: Slide the wall rosette along the connection tube until it sits flush against the wall, providing a neat finish.
- Test for Leaks: Turn on the main water supply and run water through the washbasin drain. Carefully inspect all connections for any signs of leakage. Tighten gently if necessary.
5. Operating Instructions
The Cornat T317506 Odor Trap Siphon Cup operates passively to maintain a hygienic environment:
- The siphon cup is designed to retain a small amount of water after each use of the washbasin. This water creates a physical barrier, known as a water seal.
- This water seal effectively prevents unpleasant sewer gases from rising through the drain pipes and entering your living space.
- To ensure continuous odor prevention, ensure that water is regularly run through the washbasin to replenish the water seal, especially after periods of disuse.
6. Maintenance
Regular maintenance helps ensure the longevity and effective operation of your siphon cup:
- Regular Cleaning: Periodically clean the siphon cup to prevent the buildup of hair, soap scum, and other debris that can cause blockages or reduce the effectiveness of the odor trap.
- Disassembly for Cleaning: To clean, place a bucket underneath the siphon cup. Unscrew the bottom cup section by hand. Carefully remove any accumulated debris. Rinse the components thoroughly with water.
- Reassembly: Reassemble the cup section, ensuring the sealing washer is correctly positioned. Hand-tighten until snug.
- Check for Leaks: After cleaning and reassembly, run water through the washbasin and check for any leaks.
- Avoid Harsh Chemicals: Do not use harsh chemical drain cleaners, as these can damage the plastic components of the siphon cup.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water leak at connections | Loose nuts or improperly seated sealing washers. | Hand-tighten nuts. Ensure sealing washers are correctly positioned and not damaged. Replace damaged washers if necessary. |
| Unpleasant odors from drain | Water seal has evaporated or is compromised. | Run water through the washbasin to replenish the water seal. Check for blockages in the siphon cup. |
| Slow drainage | Blockage within the siphon cup or further down the drain pipe. | Disassemble and clean the siphon cup (refer to Section 6). If drainage is still slow, the blockage may be further down the plumbing system and may require professional assistance. |
8. Specifications
- Model: T317506
- Brand: Cornat
- Material: Plastic
- Connection Size: 1 1/4'' x 50 mm
- Color: White
- Components Included: Siphon cup, adjustable connection tube, wall rosette
9. Warranty and Support
For specific warranty information regarding your Cornat T317506 Odor Trap Siphon Cup, please refer to the documentation provided at the time of purchase or visit the official Cornat website. For technical support or assistance with installation and troubleshooting, please contact Cornat customer service through their official channels.

