1. Product Overview
The BLANCO PERFORMA 50/50 Double Bowl Undermount Kitchen Sink, model 440069, is designed for efficient kitchen use. This sink features two equally sized bowls, providing ample space for various kitchen tasks such as washing, rinsing, and soaking. Constructed from SILGRANIT, a durable granite composite material, it is engineered for resilience against daily kitchen demands.
The Anthracite color offers a subtle black sparkle, complementing modern kitchen aesthetics. Its undermount installation provides a seamless look with your countertop.
Figure 1: Top-down view of the BLANCO PERFORMA 50/50 Double Bowl Undermount Kitchen Sink.
Figure 2: The BLANCO PERFORMA sink seamlessly integrated into a kitchen countertop.
2. Installation and Setup
2.1 Pre-Installation Checklist
- Verify all components are present: Sink unit, cut-out template.
- Ensure countertop material is suitable for undermount installation.
- Confirm minimum cabinet size is 36 inches to accommodate the sink.
- Review local plumbing codes and regulations.
2.2 Undermount Installation
This sink is designed for undermount installation, which involves mounting the sink beneath the countertop. This method creates a smooth transition from the countertop to the sink, preventing debris accumulation around the rim.
- Countertop Preparation: Use the provided cut-out template to accurately mark and cut the opening in your countertop. Professional installation is recommended for precise cuts and proper sealing.
- Mounting: Secure the sink to the underside of the countertop using appropriate mounting clips and silicone sealant. Ensure a watertight seal around the entire perimeter of the sink.
- Plumbing Connections: Connect the drain assemblies and plumbing lines according to standard plumbing practices. Ensure all connections are tight and leak-free.
Figure 3: Detailed dimensions for the BLANCO PERFORMA 50/50 sink, including overall length (33"), width (20"), and individual bowl dimensions (15" x 18" x 10").
3. Operating the Sink
The 50/50 double bowl configuration allows for versatile use. One bowl can be used for washing dishes, while the other can be used for rinsing, food preparation, or soaking items. This design enhances kitchen workflow efficiency.
3.1 SILGRANIT Material Properties
The sink is made from BLANCO's proprietary SILGRANIT material, which offers several performance benefits:
- Heat Resistance: Withstands temperatures up to 536°F (280°C), allowing hot pots and bakeware to be placed directly in the sink.
- Scratch Resistance: The hard granite composite material resists scratches from utensils and cookware.
- Acid Resistance: The non-porous surface is resistant to common household acids, such as those found in citrus fruits.
- Stain Resistance: Designed to resist stains from various food and beverages, including tea and red wine.
- Non-Fading: The color penetrates the entire material, ensuring consistent color that will not fade over time.
Figure 4: Close-up view of the Anthracite SILGRANIT material, showing its subtle black sparkle.
4. Maintenance and Care
Proper care will ensure the longevity and appearance of your BLANCO SILGRANIT sink. The material is designed for low maintenance and easy cleaning.
4.1 Daily Cleaning
- For routine cleaning, simply wipe the sink with a soft cloth or sponge and mild dish soap.
- Rinse thoroughly with water after cleaning to remove any soap residue.
- Dry the sink with a soft cloth to prevent water spots, especially in hard water areas.
4.2 Removing Stubborn Stains and Marks
- For more stubborn stains or metal marks (e.g., from pots and pans), use a non-abrasive cleaner specifically designed for granite composite sinks, such as BLANCOCLEAN SILGRANIT Sink Cleaner.
- Apply the cleaner to a damp sponge, gently scrub the affected area, and rinse thoroughly.
- Avoid using harsh chemicals, abrasive pads, or steel wool, as these can damage the sink surface.
Figure 5: Example of BLANCOCLEAN SILGRANIT Sink Cleaner for optimal maintenance.
5. Troubleshooting
This section addresses common concerns that may arise during the use of your BLANCO SILGRANIT sink.
5.1 Stains or Discoloration
- Cause: Accumulation of mineral deposits from hard water, or residue from certain foods/liquids left for extended periods.
- Solution: Use BLANCOCLEAN or a mixture of white vinegar and water to treat mineral deposits. For food stains, a paste of baking soda and water can be gently applied and scrubbed with a soft brush, then rinsed thoroughly. Ensure regular drying after use to minimize water spots.
5.2 Scuff Marks
- Cause: Metal utensils or pots rubbing against the sink surface.
- Solution: These are typically metal deposits on the sink surface, not actual scratches. Use a non-abrasive cleaner and a soft sponge to gently rub the marks until they disappear.
5.3 Water Drainage Issues
- Cause: Clogged drain or improper installation of plumbing.
- Solution: Check the drain for any obstructions and clear them. Ensure the drain assembly is correctly installed and sealed. If issues persist, consult a qualified plumber.
6. Specifications
| Feature | Specification |
|---|---|
| Brand | BLANCO |
| Model Number | 440069 |
| Color | Anthracite |
| Material | Granite, Granite Composite, SILGRANIT |
| Installation Type | Undermount |
| Style | 50/50 Double Bowl |
| Overall Product Dimensions (L x W x H) | 33" x 20" x 10.37" |
| Left Bowl Dimensions (L x W x D) | 15" x 18" x 10" |
| Right Bowl Dimensions (L x W x D) | 15" x 18" x 10" |
| Minimum Cabinet Size | 36" |
| Drain Type | Lift and Turn |
| Item Weight | 40 Pounds |
| Included Components | Cut-Out Template |
| UPC | 747943026970 |
7. Warranty Information
The BLANCO 440069 PERFORMA SILGRANIT Sink is covered by a Limited Lifetime Manufacturer Warranty. This warranty covers defects in material and workmanship under normal use and service. Please retain your proof of purchase for warranty claims.
For full details regarding warranty terms, conditions, and exclusions, please refer to the official BLANCO warranty documentation provided with your product or visit the manufacturer's website.
8. Customer Support
If you require assistance with installation, operation, maintenance, or have any questions regarding your BLANCO PERFORMA sink, please contact BLANCO customer support.
- Online Support: Visit the official BLANCO website for FAQs, product registration, and contact information.
- Contact Information: Refer to the packaging or the BLANCO website for current phone numbers and email addresses for customer service.
When contacting support, please have your model number (440069) and proof of purchase readily available.
