BLANCO 440254
BLANCO Spex Plus 1-3/4 Bowl Undermount Kitchen Sink Instruction Manual
Model: 440254
Introduction
Thank you for choosing the BLANCO Spex Plus 1-3/4 Bowl Undermount Kitchen Sink. This manual provides essential information for the proper installation, operation, maintenance, and care of your new sink. Please read these instructions thoroughly before beginning installation or use to ensure optimal performance and longevity of your product. Retain this manual for future reference.
Safety Information
Always prioritize safety during installation and use.
- Wear appropriate personal protective equipment, such as gloves and eye protection, during installation.
- Ensure all plumbing connections are secure and watertight to prevent leaks.
- If you are unsure about any installation steps, consult a qualified professional plumber or installer.
- Do not use abrasive cleaners or tools that could damage the sink's surface.
- Keep small children away from the installation area.
Product Overview
The BLANCO Spex Plus 1-3/4 Bowl Undermount Kitchen Sink is crafted from durable 18-gauge, 304 series stainless steel with a satin finish. It features two bowls of different sizes, designed for versatile kitchen tasks.
Key Features:
- 18-Gauge, 304 series stainless steel construction for durability.
- Two bowls with depths of 8-1/2 inches for ample capacity.
- Sound deadening insulation to reduce noise.
- Easy-to-clean satin finish.

An overhead view of the Blanco Spex Plus 1-3/4 Bowl Undermount Kitchen Sink, showcasing its two stainless steel bowls of different sizes, each with a central drain opening.
Installation Instructions
Pre-Installation Checklist:
- Verify that all components are present and undamaged.
- Ensure the required outside cabinet width is at least 36 inches.
- Acquire a suitable drain assembly (not included with the sink).
- Gather necessary tools and materials for undermount sink installation (e.g., silicone sealant, mounting clips, drill, jigsaw).
Undermount Installation Steps:
- Prepare Countertop: The countertop opening must be precisely cut according to the sink template provided by BLANCO (typically included with purchase or available from the manufacturer). Ensure edges are smooth and clean.
- Apply Sealant: Apply a continuous bead of silicone sealant around the perimeter of the sink flange that will contact the underside of the countertop.
- Position Sink: Carefully lift the sink into position from below the countertop, aligning it with the cutout. Ensure the sealant creates a tight seal.
- Secure with Clips: Attach the provided undermount clips to the sink rim and secure them to the underside of the countertop. Tighten the clips evenly until the sink is firmly held in place. Avoid overtightening.
- Connect Plumbing: Install the drain assemblies (purchased separately) into the sink bowls. Connect the P-trap and other plumbing fixtures according to local codes and manufacturer instructions.
- Test for Leaks: Once all connections are made, fill the sink with water and check thoroughly for any leaks around the drain, connections, and the sink-to-countertop seal.
- Cure Sealant: Allow the silicone sealant to cure fully as per the sealant manufacturer's instructions before heavy use.
Note: For best results and to ensure proper installation, professional installation is recommended.
Operating Instructions
The BLANCO Spex Plus sink is designed for standard kitchen use.
- Use the larger bowl for washing larger pots and pans.
- The smaller bowl can be used for food preparation, rinsing, or as a disposal basin.
- Ensure drain stoppers are properly seated to hold water.
Maintenance and Care
Proper care will help maintain the appearance and extend the life of your stainless steel sink.
- Daily Cleaning: Wipe the sink with a dry cloth after each use to prevent water spots and mineral buildup.
- Regular Cleaning: Use a mild soap or a specialized stainless steel cleaner with a soft cloth or sponge. Always rub in the direction of the grain.
- Avoid Abrasives: Do not use steel wool, abrasive pads, or harsh chemical cleaners (e.g., bleach, ammonia-based cleaners) as these can scratch the surface or cause discoloration.
- Prevent Stains: Avoid leaving acidic foods (e.g., citrus, tomatoes) or corrosive materials (e.g., drain cleaners, paint removers) in contact with the sink surface for extended periods. Rinse thoroughly if contact occurs.
- Hard Water: For areas with hard water, use a solution of vinegar and water to remove mineral deposits, then rinse and dry.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water spots/Streaks | Hard water minerals; not drying after use. | Wipe dry after each use. Use a vinegar/water solution for stubborn spots, then rinse. |
| Minor scratches | Abrasive contact with utensils or cleaning tools. | Use a stainless steel scratch removal kit (follow product instructions carefully). Always rub with the grain. |
| Dull finish | Buildup of residue; lack of proper cleaning. | Clean regularly with a mild stainless steel cleaner and a soft cloth, rubbing with the grain. |
| Drain leakage | Improperly sealed drain assembly. | Tighten drain connections. If leakage persists, disassemble, reapply plumber's putty or sealant, and reassemble. |
Specifications
| Feature | Detail |
|---|---|
| Brand | BLANCO |
| Model Number | 440254 |
| Material | 18-Gauge, 304 Series Stainless Steel |
| Finish Type | Satin / Brushed |
| Installation Type | Undermount |
| Bowl Configuration | 1-3/4 Bowl (Double Bowl) |
| Bowl Depths | 8-1/2 inches |
| Required Cabinet Size | 36 inches (outside dimension) |
| Product Dimensions | Approximately 20 x 32 x 8.5 inches (L x W x D) |
| Item Weight | 22 Pounds |
| Drain Type | Grid (drain not included) |
| Sound Deadening | Included (insulation) |
Warranty Information
The BLANCO Spex Plus 1-3/4 Bowl Undermount Kitchen Sink comes with a Limited Lifetime Warranty. This warranty covers manufacturing defects under normal use and service. For specific terms, conditions, and to make a warranty claim, please refer to the official BLANCO warranty documentation included with your purchase or visit the BLANCO website.
Customer Support
If you have any questions, require assistance with installation, or need to report a problem, please contact BLANCO customer support.
- Online: Visit the official BLANCO website for FAQs, product registration, and contact information.
- Phone: Refer to the contact details provided in your product packaging or on the BLANCO website.
When contacting support, please have your model number (440254) and purchase date available.
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