Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your CORNAT KSDSC323 WC-seat. This high-quality toilet seat features a durable acrylic surface with a unique waterfall design, a seamless MDF wooden core, and a convenient soft-close mechanism for enhanced comfort and safety.

Image: The CORNAT KSDSC323 WC-seat, showcasing its multicoloured waterfall design on the lid and white seat base with chrome hinges.
Product Features
- High-Gloss Acrylic Surface: Provides a durable, easy-to-clean finish with a vibrant waterfall design.
- Seamless MDF Wooden Core: Ensures structural integrity and stability.
- Soft-Close Mechanism: Patented, solid hinges allow the seat and cover to close gently and silently, preventing slamming and finger pinching.
- Scratch-Resistant: Designed for longevity and daily use.
- Flush Fit: Seat and cover are designed to close flush for a sleek appearance.
- Quick Fastening: Facilitates easy and secure installation.

Image: A close-up view of the chrome soft-close hinges and the detailed waterfall pattern on the toilet seat lid.
Setup and Installation
The CORNAT KSDSC323 WC-seat is designed for easy mounting on most standard WC basins. Follow these steps for a secure and wobble-free connection.
1. Check Dimensions
Before installation, ensure the toilet seat dimensions are compatible with your WC basin. Refer to the diagram below for detailed measurements.

Image: A technical diagram illustrating the dimensions of the toilet seat in centimeters, including length (45 cm), width (38 cm), and hinge spacing (13-18 cm).
2. Prepare the WC Basin
Clean the area around the mounting holes on your WC basin. Remove any old toilet seat hardware.
3. Install Hinges
- Insert the hinge bolts through the mounting holes on the WC basin.
- From underneath the basin, attach the washers and nuts to the hinge bolts.
- Do not fully tighten the nuts yet, allow for slight adjustment.
4. Attach the Seat
Align the toilet seat's hinge attachments with the installed hinge posts. Secure the seat onto the posts according to the quick fastening mechanism. Ensure the seat is centered and aligned with the WC basin.
5. Final Tightening
Once the seat is correctly positioned, fully tighten the nuts from underneath the WC basin to ensure a stable and wobble-free connection. Do not overtighten.
Operating Instructions
The CORNAT KSDSC323 WC-seat features a soft-close mechanism for quiet and safe operation.
Soft-Close Function
To close the toilet seat or lid, simply tap it gently downwards. The integrated soft-close hinges will engage, allowing the seat and lid to lower slowly and silently on their own. This prevents loud slamming noises and reduces the risk of finger injuries, especially for children.
Maintenance and Care
Proper care will ensure the longevity and appearance of your CORNAT WC-seat.
- Cleaning the Surface: Use a soft cloth and mild, non-abrasive cleaning agents. Avoid harsh chemicals, abrasive pads, or strong solvents, as these can damage the high-gloss acrylic surface and the waterfall design.
- Hinge Care: Regularly wipe the chrome hinges with a damp cloth and dry thoroughly to prevent water spots and maintain their shine. Avoid direct contact of strong cleaning agents with the hinge mechanism.
- Inspection: Periodically check the tightness of the mounting nuts to ensure the seat remains stable. Retighten if necessary.
Troubleshooting
If you encounter any issues with your CORNAT WC-seat, refer to the following common solutions:
- Seat Wobbles:
Check the mounting nuts underneath the WC basin. Tighten them securely, but do not overtighten. Ensure the buffers on the underside of the seat are making proper contact with the ceramic.
- Soft-Close Not Functioning Properly:
Ensure the hinges are clean and free from debris. If the issue persists, check if the hinges are properly aligned and tightened. The soft-close mechanism is integrated into the hinges and generally maintenance-free.
- Discoloration or Damage to Surface:
This can often be caused by using harsh cleaning chemicals. Refer to the "Maintenance and Care" section for recommended cleaning practices. For significant damage, replacement may be necessary.
Specifications
| Brand | Cornat |
| Model Number | KSDSC323 |
| Material | MDF Wooden Core with High-Gloss Acrylic Surface, Stainless Steel Hinges |
| Color | Multicoloured (Waterfall Design) |
| Style | Waterfall |
| Shape | D-Shaped (Standard Oval) |
| Product Dimensions (L x W) | 17.72"L x 14.96"W (approx. 45 cm x 38 cm) |
| Item Weight | 3.8 Kilograms |
| Operation Mode | Manual (Soft-Close Mechanism) |
| Manufacturer | Conmetall GmbH & Co. KG |
Warranty and Support
For warranty information or technical support regarding your CORNAT KSDSC323 WC-seat, please refer to the documentation provided with your purchase or contact Cornat customer service directly. Keep your proof of purchase for warranty claims.
For further assistance, you may visit the official Cornat website or contact your retailer.