Introduction
This manual provides essential information for the installation, operation, and maintenance of your BLANCO 525868 BLANCODELTA II-F Kitchen Sink. Please read these instructions carefully before beginning installation or use to ensure proper function and longevity of your product.

Setup and Installation
The BLANCODELTA II-F sink is designed for countertop installation. Ensure your cabinet base width meets the minimum requirement of 90 cm (undersink cabinet) or 1042 mm (base width) for proper fitment. Professional installation is recommended.
Included Components:
- Drain fitting with space-saving pipe
- 3 ½ inch InFino basket valve with comfortable rotary drain operation
- Mounting set
- Stainless steel shell (for additional basin)
Installation Diagram:

Refer to the detailed technical drawing for precise cutout dimensions and plumbing connections. Ensure all connections are watertight before use.
Operating Instructions
The BLANCODELTA II-F sink features an ergonomic design for efficient kitchen tasks.
Basin Features:
- Spacious Main Basin: Designed with a long sink diagonal to comfortably accommodate larger items such as baking trays for washing.
- Additional Basin: Includes a perforated stainless steel bowl, ideal for rinsing vegetables or draining small items.
- Modern Draining Board: Features a concealed round overflow for a clean aesthetic and efficient water drainage.

InFino Drain System:
The InFino drain system provides an elegant and highly functional solution for waste disposal. The basket valve is operated by a comfortable rotary control, allowing you to open or close the drain without reaching into the water. Its integrated design makes it very easy to clean.

Maintenance and Care
Proper care ensures the lasting beauty and functionality of your BLANCO Silgranit sink.
Daily Cleaning:
- After each use, wipe the sink with a dry cloth to prevent water spots and mineral buildup.
- For general cleaning, use a mild dish soap and a soft sponge or cloth. Rinse thoroughly with water.
Stain Removal:
- For stubborn stains, use a non-abrasive cleaner specifically designed for composite sinks. Follow the product instructions carefully.
- Avoid harsh chemicals, abrasive cleaners, steel wool, or scouring pads, as these can damage the Silgranit surface.
- Rinse the sink immediately after contact with highly acidic or alkaline substances (e.g., lemon juice, vinegar, drain cleaners).
Preventing Damage:
- Do not place hot pots or pans directly onto the sink surface without protection.
- Avoid dropping heavy or sharp objects into the sink, which could cause chipping or cracking.
Troubleshooting
This section addresses common issues you might encounter with your kitchen sink.
Slow Drainage:
- Check Basket Strainer: Ensure the InFino basket valve is clear of food debris. Remove and clean it regularly.
- Inspect P-Trap: A clog in the P-trap (the U-shaped pipe under the sink) can restrict drainage. Carefully remove and clean the P-trap if accessible.
- Ventilation: Ensure your plumbing system's vent pipe is not blocked, as this can cause slow drainage.
Water Spots/Stains:
- Mineral Deposits: If you have hard water, mineral deposits can appear as white spots. Use a mild descaling agent or a solution of white vinegar and water (diluted) to gently clean, then rinse thoroughly.
- Food Stains: Refer to the "Stain Removal" section under Maintenance for specific cleaning instructions.
Leaking:
- Loose Connections: Check all plumbing connections under the sink for tightness. Do not overtighten.
- Sealant Issues: If leaks persist around the sink's edge, the sealant between the sink and countertop may need to be reapplied. This typically requires professional attention.
- Drain Assembly: Inspect the drain assembly for cracks or improperly seated gaskets.
If you are unable to resolve an issue, contact a qualified plumber or BLANCO customer support.
Technical Specifications
| Feature | Detail |
|---|---|
| Brand | BLANCO |
| Model Number | 525868 |
| Color | Black |
| Material | Silgranit (Sink), Stainless Steel (Shell, Handle) |
| Product Dimensions (D x W x H) | 22.05" x 41.02" x 7.2" (560mm x 1042mm x 183mm approx.) |
| Minimum Base Cabinet Width | 90 cm (Undersink Cabinet) / 1042 mm (Base Width) |
| Installation Type | Countertop (Arbeitsplatte) |
| Finish Type | Brushed (for metal components) |
| Drain Type | Pop-Up (InFino basket valve with rotary operation) |
| Hole Count | 1 (for faucet, additional holes may be pre-drilled or marked for drilling) |
| Item Weight | 19 Kilograms (approx. 41.8 pounds) |
| Product Care Instructions | Wipe with Dry Cloth |
| Date First Available | December 29, 2020 |
Warranty and Support
BLANCO products are manufactured to high-quality standards. For specific warranty details, please refer to the documentation provided with your purchase or visit the official BLANCO website.
- Spare Part Availability: EU spare parts are available for a duration of 2 years from the date of purchase.
- Customer Support: For technical assistance, warranty claims, or to inquire about spare parts, please contact BLANCO customer service through their official website or the contact information provided in your product packaging.
Always provide your model number (525868) and date of purchase when contacting support.





