1. Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of your Franke Kitchen Sink Maris MRG 651-97. Please read this manual thoroughly before installation and use to ensure proper function and longevity of your sink.
The Franke Maris MRG 651-97 is a built-in kitchen sink made of Fragranite, featuring a single and a half bowl design with a practical drainer. Its minimalist design is characterized by clear and simple contours, making it a functional and aesthetic addition to any kitchen.
2. Safety Instructions
Always adhere to local building and plumbing codes during installation. Professional installation is recommended. Ensure all water supply lines are shut off before beginning installation. Do not use abrasive cleaners or harsh chemicals on the sink surface, as this may damage the Fragranite material. Always wear appropriate personal protective equipment (PPE) during installation, such as gloves and eye protection.
3. Product Overview



4. Setup and Installation
The Franke Maris MRG 651-97 is designed for built-in installation. Ensure you have the necessary tools and follow these guidelines:
4.1. Pre-Installation Checks
- Verify that all components listed in the packaging are present, including the sink, mounting set, and user manual.
- Confirm that the minimum width of the substructure for installation is at least 60 cm.
- Ensure the countertop material is suitable for a built-in sink and can accommodate the required cut-out dimensions.
4.2. Countertop Preparation
Based on the technical drawing (Figure 3.3), the recommended cut-out in the countertop is 950 x 480 mm. Carefully measure and mark the cut-out area on your countertop. Use appropriate cutting tools for your countertop material to create the opening.
4.3. Sink Placement and Sealing
- Apply a suitable sealant (e.g., silicone) around the edge of the countertop cut-out to create a watertight seal.
- Carefully lower the sink into the prepared opening. The sink is reversible, allowing the drainer to be positioned on either the left or right side as desired.
- Secure the sink using the provided mounting set according to the instructions included with the set.
4.4. Plumbing Connections
The sink comes with a 3 1/2" drain and includes a siphon. Connect the drain and siphon to your household plumbing system. Ensure all connections are tight and leak-free. The sink has 2 milled holes for a tap, allowing for flexible faucet placement.
5. Operating Instructions
The Franke Maris MRG 651-97 sink is designed for everyday kitchen use. Its dual-bowl configuration offers versatility:
- Large Bowl: Ideal for washing larger pots, pans, and dishes.
- Smaller Half Bowl: Useful for washing vegetables and fruit, soaking cutlery, or defrosting smaller items.
- Drainer: Provides a convenient area for drying dishes or preparing food.
The included stopper for the drain allows you to fill the bowls with water as needed.
6. Maintenance and Care
To maintain the pristine appearance and longevity of your Fragranite sink, follow these care instructions:
- Daily Cleaning: Clean the sink regularly with warm water, a soft cloth, and a mild dish soap. Rinse thoroughly after cleaning.
- Stain Removal: For stubborn stains, use a non-abrasive cream cleaner specifically designed for composite sinks. Apply with a soft sponge, rub gently, and rinse well.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, steel wool, scouring pads, strong acids, alkalis, or bleach, as these can damage the Fragranite surface.
- Heat Resistance: While Fragranite is highly heat resistant, it is recommended to use a trivet or hot pad for extremely hot pots and pans to prevent thermal shock and potential discoloration over time.
- Preventing Limescale: In hard water areas, limescale deposits may form. Regular cleaning helps prevent buildup. For existing limescale, use a diluted vinegar solution or a specialized limescale remover, following the product instructions.
7. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Water not draining properly | Clogged drain or siphon. | Check the drain stopper for debris. Clear any blockages in the drain or siphon. If necessary, disassemble and clean the siphon. |
| Stains on sink surface | Food residue, hard water deposits, or improper cleaning agents. | Clean with mild dish soap and a soft cloth. For stubborn stains, use a non-abrasive cream cleaner for composite sinks. For limescale, use diluted vinegar. |
| Sink appears dull or discolored | Buildup of soap scum or mineral deposits; use of harsh chemicals. | Ensure regular cleaning. Avoid abrasive cleaners. A specialized granite composite cleaner can restore luster. |
8. Specifications
| Feature | Detail |
|---|---|
| Brand | Franke |
| Model Number | 114.0716.348 |
| Sink Type | Kitchen Sink with Drainer |
| Material | Fragranite (Granite Composite) |
| Color | Slate Grey |
| Mounting Method | Built-in (Undermount) |
| Number of Bowls | 1 1/2 (Single and a Half Bowl) |
| Number of Drainers | 1 |
| Reversible | Yes (Drainer position reversible) |
| External Dimensions (L x W) | 970 x 500 mm (38.19"W x 19.69"D) |
| Large Bowl Dimensions (L x W x H) | 350 x 425 x 200 mm (13.78" x 16.73" x 7.87") |
| Smaller Bowl Dimensions (L x W x H) | 160 x 302 x 130 mm (6.30" x 11.89" x 5.12") |
| Cut-out in Countertop (L x W) | 950 x 480 mm |
| Minimum Substructure Width | 60 cm |
| Drain Size | 3 1/2" |
| Siphon Included | Yes |
| Number of Tap Holes | 2 (milled) |
| Item Weight | 26.8 pounds |
9. Warranty and Support
Your Franke Kitchen Sink Maris MRG 651-97 comes with a manufacturer's warranty. Please refer to the specific warranty documentation provided with your purchase for details on coverage, terms, and conditions. For technical support, spare parts, or warranty claims, please contact Franke customer service or visit the official Franke website. Ensure you have your model number (114.0716.348) and proof of purchase readily available when contacting support.
For further assistance, you may visit the official Franke website: www.franke.com





