1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Ibergrif M20502B Click-Clack Universal Sink Drain with Overflow. Please read these instructions carefully before installation and retain them for future reference. Proper installation and care will ensure optimal performance and longevity of the product.
2. Product Overview
The Ibergrif M20502B is a universal sink drain designed for washbasins with an overflow hole. It features a convenient click-clack mechanism for easy water drainage and sealing, and is constructed from durable brass with a chrome finish for resistance against scratches and tarnishing.
2.1 Key Features
- Click-Clack Function: Simple push-button operation to open and close the drain.
- Universal Fit: Compatible with most washbasins featuring a 1/4" hole and overflow.
- Durable Construction: Made from all-brass for extended service life.
- Chrome Finish: Provides scratch and tarnish resistance.
- Integrated Overflow: Designed for sinks with an overflow system to prevent flooding.
- Anti-Clogging Design: Helps prevent blockages.
2.2 Product Components

Figure 1: Main view of the Ibergrif M20502B Click-Clack Universal Sink Drain. This image displays the complete drain assembly, including the pop-up stopper, main body, and threaded pipe, all in a silver finish.

Figure 2: Exploded view showing the double gasket system. This image highlights the top and under gaskets, which are crucial for creating a watertight seal without the need for additional sealant.
3. Specifications
| Model | M20502B |
| Material | Metal (All-brass construction) |
| Color | Silver |
| Product Dimensions | 1.57"W x 3.82"H (40.5mm W x 97mm H) |
| Item Weight | 0.3 Kilograms |
| Compatibility | Washbasins with 1/4" hole and overflow |

Figure 3: Detailed dimensions of the sink drain. This diagram illustrates the key measurements of the drain, including its overall height (97mm), width (65mm), and threaded pipe diameter (40.5mm).

Figure 4: Compatibility illustration for sinks with overflow. This image shows various sink types, indicating that the drain is suitable for lavabos with an overflow hole, while not suitable for those without or for glass bowl sinks.
4. Installation Instructions
Before beginning installation, ensure you have all necessary tools and that the sink is clean and dry. Refer to Figure 5 for a visual guide.
- Disassemble Washers and Nut: Unscrew the nut and remove the washers from the drain body. Keep them in order for reassembly.
- Place Waste into Sink Hole: Insert the upper part of the drain (the waste) into the sink's drain hole from above. Ensure it is centered and the overflow holes align with the sink's overflow channel.
- Screw the Nut On: From underneath the sink, slide the washers back onto the threaded pipe in the correct order (refer to Figure 2 for gasket placement) and then screw the nut onto the threaded pipe. Hand-tighten first, then use a wrench to secure it firmly, but do not overtighten.
- Connect to Trap: Connect the sink trap (P-trap or S-trap) to the bottom of the drain's threaded pipe. Ensure a secure, watertight connection.
- Tighten the Siphon: Securely tighten all connections on the siphon (trap) to prevent leaks.

Figure 5: Step-by-step installation guide. This image visually demonstrates the five key steps for installing the sink drain, from disassembling components to tightening the siphon.

Figure 6: Diagram illustrating the overflow and drainage system. This image shows how water flows through the overflow channel into the drain and then into the sewage pipe, demonstrating the integrated overflow functionality.
5. Operating Instructions
The Ibergrif M20502B sink drain features a simple "Click-Clack" mechanism for opening and closing the drain.
- To Close the Drain: Gently press down on the center of the drain stopper. You will hear a "click" as it locks into the closed position, sealing the sink.
- To Open the Drain: Gently press down on the center of the drain stopper again. You will hear another "clack" as it releases and pops up, allowing water to drain.

Figure 7: Demonstration of the anti-clogging and click-clack function. This image shows a finger pressing the stopper, illustrating the easy operation and the design that helps prevent debris from causing blockages.
6. Maintenance
Regular maintenance will help keep your sink drain functioning properly and maintain its appearance.
- Cleaning: Clean the drain stopper and visible parts regularly with a soft cloth and mild soap. Avoid abrasive cleaners, harsh chemicals, or scouring pads, as these can damage the chrome finish.
- Debris Removal: Periodically remove the stopper and clear any accumulated hair or debris from the drain opening to prevent blockages and ensure efficient drainage.
- Check for Leaks: Occasionally inspect the connections underneath the sink for any signs of leaks. Tighten connections if necessary.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water Drains Slowly | Accumulated hair or debris in the drain. | Remove the stopper and clean out any obstructions. |
| Drain Leaks Under Sink | Loose connections or improperly seated gaskets. | Check and tighten all nuts and connections. Ensure gaskets are correctly positioned and not damaged. |
| Stopper Does Not Click/Seal Properly | Mechanism obstruction or misalignment. | Remove the stopper and inspect for debris or damage to the click-clack mechanism. Clean and reinsert. |
8. Warranty and Support
For warranty information or technical support, please refer to the documentation provided with your purchase or contact Ibergrif customer service directly. Contact details can typically be found on the manufacturer's official website or on your purchase receipt.
You can visit the Ibergrif Store on Amazon for more product information.





