Introduction
This manual provides essential information for the installation, operation, and maintenance of the Geberit 240.195.00.1 Bassin. This component is designed as a replacement part for compatible Geberit toilet cisterns, ensuring proper flushing function and water sealing. Please read these instructions carefully before proceeding with installation or maintenance.
Product Overview
The Geberit 240.195.00.1 Bassin is a critical internal component of a toilet cistern, often referred to as a flush valve or bell siphon mechanism. It is responsible for controlling the release of water from the cistern into the toilet bowl during flushing. This specific model includes a gasket to ensure a watertight seal within the cistern assembly.

Figure 1: The Geberit 240.195.00.1 Bassin, showing its white plastic cage structure and the black rubber gasket at its base, essential for sealing within the toilet cistern.
Setup and Installation
Installation of the Geberit 240.195.00.1 Bassin typically involves replacing an existing flush valve mechanism within a Geberit cistern. It is recommended to consult the specific cistern's manual for detailed disassembly and reassembly instructions. The following steps provide a general guide:
- Preparation: Turn off the water supply to the toilet and flush to empty the cistern. Remove the cistern lid.
- Remove Old Component: Carefully detach the old flush valve mechanism. This may involve twisting, unlatching, or unscrewing depending on the cistern model.
- Inspect Cistern: Clean any debris or mineral buildup from the cistern base where the new component will sit.
- Install New Bassin: Position the Geberit 240.195.00.1 Bassin into the designated opening at the bottom of the cistern. Ensure the gasket is correctly seated to create a watertight seal.
- Secure Component: Secure the new bassin according to your cistern's design (e.g., twist and lock, screw down). Verify it is firmly in place and does not wobble.
- Reconnect Components: Reattach any levers, chains, or other parts that connect to the flush mechanism.
- Test: Turn the water supply back on and allow the cistern to fill. Check for leaks around the base of the bassin and perform several test flushes to ensure proper operation.
If you are unsure about any step, it is advisable to seek assistance from a qualified plumber.
Operating
Once installed, the Geberit 240.195.00.1 Bassin operates as part of the toilet's flushing system. When the flush button or lever is activated, it lifts the bassin, allowing water to flow from the cistern into the toilet bowl. After the flush cycle, the bassin returns to its seated position, sealing the outlet and allowing the cistern to refill. Proper operation is indicated by a complete and efficient flush, followed by the cistern refilling without continuous running water.
Maintenance
Regular maintenance can extend the lifespan of your Geberit Bassin and prevent common issues:
- Inspection: Periodically inspect the bassin and its gasket for signs of wear, cracks, or mineral buildup.
- Cleaning: If mineral deposits or debris accumulate, carefully remove the bassin (following installation steps in reverse) and clean it with a mild, non-abrasive cleaner and a soft brush. Rinse thoroughly before reinstallation.
- Gasket Replacement: The gasket is a wear item. If leaks occur from the cistern into the bowl, the gasket may need replacement. Ensure you use a genuine Geberit replacement gasket for optimal performance.
Troubleshooting
Common issues and their potential solutions:
- Continuous Running Water:
- Check if the bassin is seated correctly.
- Inspect the gasket for damage or debris preventing a proper seal. Clean or replace the gasket if necessary.
- Ensure no other cistern components (e.g., fill valve) are interfering with the bassin's movement.
- Weak or Incomplete Flush:
- Verify that the flush mechanism (lever/button) is fully lifting the bassin. Adjust if needed.
- Check for obstructions around the bassin that might impede water flow.
If troubleshooting steps do not resolve the issue, professional plumbing assistance may be required.
Specifications
| Feature | Detail |
|---|---|
| Brand | Geberit |
| Part Number | 240.195.00.1 |
| Item Model Number | K11740 |
| Material | Brass, Stainless Steel (Note: Product image appears to be plastic, this specification might refer to internal components or general product line materials. The bassin itself is typically plastic.) |
| Product Dimensions (L x W x H) | 6.69 x 3.54 x 3.54 inches |
| Item Weight | 2.26 ounces |
| Exterior Finish | Painted |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Compression |
| Outlet Connection Size | 2 Inches |
| Outlet Connection Type | Compression |
| Number of Ports | 2 |
| Specification Met | CE |
| UPC | 789474944668 |
| Included Components | Item (Bassin with gasket) |
Note: Some specifications like "Material: Brass, Stainless Steel" might refer to the general product line or other components, as the visible bassin part is typically plastic.
Warranty Information
Specific warranty details for the Geberit 240.195.00.1 Bassin are not provided in this document. For comprehensive warranty information, please refer to the official Geberit website or contact Geberit customer service directly. Keep your proof of purchase for any warranty claims.
Customer Support
For further assistance, technical support, or inquiries regarding the Geberit 240.195.00.1 Bassin, please visit the official Geberit website or contact their customer support department. Contact information can typically be found on the Geberit corporate website under the "Support" or "Contact Us" sections.





