1. Introduction
Thank you for choosing a Kraus Loften Kitchen Workstation Sink. This manual provides detailed instructions for the safe and proper installation, operation, and maintenance of your new sink. Please read all instructions carefully before beginning installation and keep this manual for future reference. For additional information or assistance, please visit kraususa.com.
2. Safety Information
WARNING: Failure to follow these instructions could result in property damage, personal injury, or death.
- Always wear safety glasses and gloves during installation.
- Ensure all local plumbing and building codes are followed.
- Turn off water supply before beginning any plumbing work.
- If you are unsure about any part of the installation, consult a professional plumber.
3. Package Contents
Verify that all components are present before discarding packaging materials.
- Kitchen Sink (KWT321-25/18)
- Mounting Hardware
- Cutout Template
- Bottom Grid
- Strainer Assembly
- Drain Cap
- Dish Towel
- Instruction Manual

Image 1: Kraus Loften KWT321-25/18 Kitchen Workstation Sink with its various components and accessories. The image displays the stainless steel sink, a bottom grid, a strainer, and other items typically included in the package.
4. Tools Required for Installation
The following tools are recommended for a successful installation:
- Safety Glasses
- Gloves
- Tape Measure
- Pencil
- Jigsaw or Router (for countertop cutout)
- Drill
- Silicone Sealant
- Adjustable Wrench
- Screwdriver
- Level
5. Setup and Installation
5.1 Preparing the Countertop
- Place the provided cutout template on the countertop in the desired location.
- Trace the outline of the template onto the countertop with a pencil.
- For undermount installation, ensure the cutout is slightly smaller than the sink rim for proper support. For drop-in, follow the template precisely.
- Carefully cut along the traced line using a jigsaw or router.
- Clean the edges of the cutout.
5.2 Installing the Sink
- Apply a bead of silicone sealant around the perimeter of the countertop cutout.
- Carefully lower the sink into the cutout (for drop-in) or lift it into place from underneath (for undermount).
- Secure the sink using the provided mounting hardware. Tighten the clips evenly to ensure a tight seal.
- Wipe away any excess silicone sealant immediately.
- Allow the sealant to cure for at least 24 hours before connecting plumbing.
5.3 Connecting Plumbing
- Install the strainer assembly into the sink drain opening according to the manufacturer's instructions.
- Connect the drain pipe to the strainer assembly.
- Connect the faucet and water supply lines (faucet sold separately).
- Turn on the water supply and check for leaks.
6. Operating Your Workstation Sink
Your Kraus Loften workstation sink is designed for versatility and efficiency. The integrated ledge allows for various accessories (e.g., cutting board, roll-up dish rack) to slide across the sink, creating a functional workspace.
- Using Accessories: Place workstation accessories directly on the integrated ledge. Ensure they are properly seated to prevent slipping.
- Bottom Grid: The included bottom grid protects the sink surface from scratches and allows water to drain freely.
- Strainer: The strainer assembly prevents food particles from entering your plumbing. Empty it regularly.
7. Care and Maintenance
Proper care will ensure the longevity and appearance of your stainless steel sink.
- Daily Cleaning: Clean daily with a soft cloth or sponge and mild dish soap. Rinse thoroughly and wipe dry to prevent water spots.
- Avoid Abrasives: Do not use abrasive cleaners, steel wool, or scouring pads, as these can scratch the stainless steel finish.
- Chemicals: Avoid harsh chemicals, bleach, or cleaners containing chlorides, which can corrode stainless steel.
- Rust Prevention: Remove any iron-based items (e.g., cast iron pots, steel wool) from the sink immediately to prevent rust stains. If rust spots appear, use a non-abrasive stainless steel cleaner.
- Workstation Accessories: Clean workstation accessories regularly with mild soap and water.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Water spots / Streaks | Hard water deposits; not drying after use. | Wipe sink dry after each use. Use a 50/50 solution of water and white vinegar for stubborn spots, then rinse and dry. |
| Scratches on surface | Abrasive cleaning; heavy objects dropped in sink. | Use non-abrasive cleaners and soft cloths. Use the bottom grid to protect the sink base. Minor scratches can be buffed out with a stainless steel scratch removal kit. |
| Rust spots | Iron particles left on surface; exposure to harsh chemicals. | Remove iron-based items promptly. Clean with a non-abrasive stainless steel cleaner. Avoid cleaners with chlorides. |
| Leaking around drain or faucet | Improperly sealed connections. | Check all plumbing connections. Ensure silicone sealant is properly applied and cured. Tighten connections if necessary. Consult a plumber if leaks persist. |
9. Specifications
| Feature | Detail |
|---|---|
| Model Number | KWT321-25/18 |
| Type | Drop-in / Undermount Workstation Sink |
| Material | 18 Gauge T304 Stainless Steel |
| Bowl Configuration | Single Bowl |
| Overall Dimensions | 25" L x 22" W x 10" D (Approximate, refer to template for exact cutout) |
| Minimum Cabinet Size | 27 inches |
| Drain Opening | 3.5 inches |
10. Warranty and Customer Support
Kraus products are manufactured under the highest standards of quality and workmanship. Kraus offers a limited lifetime warranty on its kitchen sinks. For complete warranty information, please visit our website or contact customer service.
Customer Service:
- Website: www.kraususa.com
- Email: customerservice@kraususa.com
- Phone: 1-800-775-0703 (USA/Canada)
Please have your model number (KWT321-25/18) and proof of purchase available when contacting customer service.







