1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your ARIEL 15.13" x 20.25" Rectangular Undermount Bathroom Sink, Model BD-REC-SK. Please read these instructions thoroughly before beginning installation or use to ensure safety and optimal performance.
The ARIEL rectangular undermount sink is crafted from durable porcelain, designed for longevity and ease of care. Its modern design integrates seamlessly into various bathroom aesthetics.
Key Features:
- Exterior Size: 15.13'' L x 20.25'' W x 7.5'' H
- Interior Size: 13" L x 18.25'' W x 6.5'' D
- Constructed from UPC Certified Porcelain for durability.
- Designed to resist yellowing and maintain original color.
- Integrated overflow hole to prevent spills.
- Easy-to-clean surface for simple maintenance.
2. Product Overview and Dimensions
Understanding the precise dimensions of your sink is crucial for proper installation and fit within your vanity countertop.

Figure 2.1: A detailed technical drawing providing top and side views of the ARIEL rectangular undermount sink, including all critical dimensions for installation.
Dimensions:
| Measurement | Value |
|---|---|
| Exterior Length | 20.25 inches |
| Exterior Width | 15.13 inches |
| Exterior Height | 7.5 inches |
| Interior Length | 18.25 inches |
| Interior Width | 13 inches |
| Interior Depth | 6.5 inches |
| Drain Hole Diameter | 1.6 inches |
3. Safety Information
- Always wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation.
- Ensure the work area is well-lit and clear of obstructions.
- Turn off the main water supply before beginning any plumbing work.
- Handle the sink with care to avoid chipping or breaking the porcelain.
- If you are unsure about any step of the installation process, consult a qualified plumber.
4. Tools and Materials Required
Tools:
- Safety glasses
- Gloves
- Tape measure
- Pencil or marker
- Drill
- Jigsaw or appropriate cutting tool for countertop material
- Caulking gun
- Wrenches (adjustable or basin wrench)
- Screwdriver
Materials:
- Silicone sealant (100% silicone, mildew resistant)
- Mounting clips (typically included with sink or countertop)
- Drain assembly (sold separately)
- Faucet (sold separately)
- Plumber's putty
5. Installation Instructions (Undermount)
Follow these steps for installing your undermount bathroom sink. Ensure all safety precautions are observed.

Figure 5.1: The ARIEL rectangular undermount sink integrated into a bathroom vanity, with water actively flowing from a faucet, demonstrating its functional use.
- Prepare the Countertop: If not already done, cut the opening in your countertop according to the sink template provided by the countertop manufacturer or the sink's dimensions. Ensure the edges are smooth and clean.
- Position Mounting Clips: Attach the mounting clips or brackets to the underside of the countertop around the sink opening. Do not tighten them fully yet.
- Apply Sealant: Apply a continuous bead of 100% silicone sealant around the rim of the sink opening on the underside of the countertop.
- Mount the Sink: Carefully lift the sink and align it with the opening from underneath the countertop. Press the sink firmly into the sealant.
- Secure the Sink: Engage the mounting clips and tighten them evenly to secure the sink to the countertop. Do not overtighten. Wipe away any excess sealant immediately.
- Install Drain Assembly: Apply plumber's putty around the drain opening on the sink. Insert the drain assembly through the opening and secure it from underneath according to the drain manufacturer's instructions.
- Install Faucet: Install your chosen faucet onto the countertop according to its manufacturer's instructions.
- Connect Plumbing: Connect the hot and cold water supply lines to the faucet and the drain trap to the drain assembly. Ensure all connections are tight to prevent leaks.
- Test for Leaks: Turn on the main water supply and check all connections for leaks. Run water into the sink to verify proper drainage and overflow function.
6. Operation
The ARIEL rectangular undermount bathroom sink operates like any standard bathroom sink. Use the faucet to control water flow and temperature. The integrated overflow hole is designed to prevent water from spilling over the rim if the main drain becomes blocked or the faucet is left running.

Figure 6.1: A close-up view of the overflow hole feature in the ARIEL rectangular undermount sink, designed to prevent water spillage.
7. Maintenance and Care
Proper care will ensure the longevity and pristine appearance of your ARIEL porcelain sink.
- Daily Cleaning: Wipe the sink with a dry, soft cloth after each use to prevent water spots and mineral buildup.
- Regular Cleaning: For general cleaning, use a mild, non-abrasive cleaner and a soft sponge or cloth. Rinse thoroughly with water and dry completely.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, scouring pads, or harsh chemicals such as strong acids, alkalis, or drain cleaners, as these can damage the porcelain finish.
- Stain Removal: For stubborn stains, a paste of baking soda and water can be gently applied and rinsed.
- Prevent Yellowing: The sink is designed to resist yellowing. Regular cleaning as described above will help maintain its original white color.

Figure 7.1: An image illustrating the ARIEL sink's resistance to yellowing over time, showing a pristine white surface compared to a discolored one.
8. Troubleshooting
Common Issues and Solutions:
- Slow Drainage:
Possible Cause: Clog in the drain or P-trap.
Solution: Remove the drain stopper and clear any visible debris. If necessary, disassemble the P-trap and clean it. Avoid pouring grease or coffee grounds down the drain. - Leaking Around Drain:
Possible Cause: Loose drain assembly or worn plumber's putty/sealant.
Solution: Tighten the drain assembly nut from underneath the sink. If the leak persists, remove the drain assembly, clean old putty/sealant, apply new plumber's putty or silicone sealant, and reassemble. - Leaking Around Faucet Base:
Possible Cause: Loose faucet mounting nuts or worn O-rings/gaskets.
Solution: Tighten the faucet mounting nuts from underneath the countertop. If the leak continues, consult the faucet's instruction manual for specific repair steps. - Water Spots/Mineral Buildup:
Possible Cause: Hard water or infrequent drying.
Solution: Wipe the sink dry after each use. For existing buildup, use a solution of white vinegar and water (1:1 ratio), apply, let sit for a few minutes, then scrub gently and rinse thoroughly.
9. Specifications
| Attribute | Detail |
|---|---|
| Brand | ARIEL |
| Model Number | BD-REC-SK |
| Color | White |
| Material | Porcelain |
| Product Dimensions (Exterior) | 15.13"D x 20.25"W x 7.5"H |
| Size (Interior) | 13" L x 18.25" W x 6.5" D |
| Style | Modern |
| Installation Type | Undermount |
| Finish Type | Ceramic |
| Shape | Rectangular |
| Drain Type | Pop-Up (drain assembly sold separately) |
| Product Care Instructions | Wipe with Dry Cloth |
| Hole Count | 1 (for drain) |
| Item Weight | 24 pounds |
| Special Features | Durable, Overflow-Proof |
| Usage | Inside |
| Included Components | Sink |
10. Warranty Information
This ARIEL bathroom sink is covered by a 1 Year Limited Warranty. This warranty covers defects in material and workmanship under normal use and service. Please retain your proof of purchase for warranty claims. For specific terms and conditions, please refer to the warranty documentation included with your product or contact ARIEL customer support.
11. Customer Support
If you have any questions, require assistance with installation, or need to report a defect, please contact ARIEL customer support. Refer to the contact information provided on the product packaging or the official ARIEL website.
For more information, you may visit the ARIEL Store on Amazon.





