BLANCO 511631
BLANCO RONDO SILGRANIT Bar Prep Sink Instruction Manual
Model: 511631
1. Product Overview
The BLANCO RONDO SILGRANIT Bar Prep Sink is designed for use in kitchen islands, wet bars, or as a secondary prep sink. Constructed from durable SILGRANIT material, it offers resilience against extreme temperature fluctuations and is less prone to damaging dinnerware. This sink supports both drop-in and undermount installation methods.

Image 1.1: Top-down view of the BLANCO RONDO SILGRANIT Bar Prep Sink in White, showcasing its round design and integrated drain.
2. Installation Instructions
This sink can be installed as either a drop-in (top-mount) or undermount unit. Professional installation is recommended to ensure proper fit and sealing.
2.1 Pre-Installation Checks
- Verify all components are present and undamaged.
- Ensure the countertop opening matches the required cutout dimensions.
- Confirm minimum cabinet size meets specifications.
2.2 Dimensions
Refer to the following dimensions for accurate installation:
- Overall Diameter: 17-11/16 inches (450 mm)
- Bowl Diameter: 14-15/16 inches (379 mm)
- Bowl Depth: 6-5/8 inches (168 mm)
- Minimum Cabinet Size: 18 inches (457 mm)
- Cutout Size: 16-15/16 inches (430 mm)

Image 2.1: Diagram showing the overall diameter of the BLANCO RONDO sink as 17-11/16 inches.

Image 2.2: Diagram illustrating the bowl diameter of the BLANCO RONDO sink as 14-15/16 inches.
2.3 Undermount Installation
For undermount installation, a template must be created by the fabricator to ensure a precise fit with your countertop material. Secure the sink using appropriate mounting clips and sealant as per industry standards.
2.4 Drop-In Installation
For drop-in installation, apply a bead of silicone sealant around the perimeter of the cutout. Carefully lower the sink into the opening, ensuring it is centered. Secure the sink with the provided mounting clips, tightening them evenly to create a watertight seal.
3. Operation
The BLANCO RONDO sink functions as a standard bar or prep sink. Its SILGRANIT construction is designed to withstand daily use, including exposure to hot and cold water. The integrated drain is compatible with standard plumbing connections.
- Drain Type: Lift and Turn
4. Care and Maintenance
Proper care will maintain the appearance and longevity of your BLANCO SILGRANIT sink.
- Daily Cleaning: Clean with warm water, a soft cloth, and a mild dish soap. Rinse thoroughly after cleaning.
- Stain Removal: For stubborn stains, use a non-abrasive cleaner specifically designed for granite composite sinks. Avoid harsh chemicals, abrasive pads, or steel wool, as these can damage the surface.
- Heat Resistance: While SILGRANIT is highly heat resistant, it is advisable to use a trivet or hot pad for extremely hot pots and pans to prevent potential thermal shock or discoloration over time.
- Avoid Impact: Although durable, dropping heavy or sharp objects into the sink can cause damage.
- Product Care Instructions: Hand Wash.

Image 4.1: Example of a BLANCOCLEAN SILGRANIT Sink Cleaner product, recommended for maintaining the sink's finish.
5. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Sink appears dull or stained | Mineral deposits from hard water, food stains, or improper cleaning agents. | Clean regularly with mild soap and water. For stubborn stains, use a granite composite sink cleaner. Ensure thorough rinsing. |
| Water drains slowly | Clog in the drain or P-trap. | Remove the drain stopper and clear any visible debris. If the issue persists, inspect and clear the P-trap. Avoid pouring grease down the drain. |
| Sink surface damage (e.g., cracks) | Impact from heavy objects, manufacturing defect, or improper installation. | Inspect the sink upon delivery for any damage. For new damage, contact BLANCO customer support or your installer. Refer to warranty information. |
6. Product Specifications
| Brand | BLANCO |
| Model Number | 511631 |
| Material | SILGRANIT (80% solid granite) |
| Color | White |
| Overall Dimensions (D x W x H) | 17.72"D x 17.72"W x 6.87"H (450 mm x 450 mm x 174 mm) |
| Bowl Dimensions (Diameter x Depth) | 14-15/16" Diameter x 6-5/8" Deep (379 mm x 168 mm) |
| Minimum Cabinet Size | 18 inches (457 mm) |
| Cutout Size | 16-15/16 inches (430 mm) |
| Installation Type | Drop-In; Undermount |
| Drain Type | Lift and Turn |
| Item Weight | 11.96 pounds (5.42 kg) |
| UPC | 747943013185 |
7. Warranty and Support
The BLANCO RONDO SILGRANIT Bar Prep Sink is covered by a Limited Lifetime Warranty. This warranty covers manufacturing defects under normal use and service.
For warranty claims, technical assistance, or further inquiries, please contact BLANCO customer support through their official website or the retailer where the product was purchased.
Manufacturer: BLANCO
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