1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Elkay LK35B 3-1/2" Drain Fitting. This drain fitting is designed for kitchen sinks and features a durable Type 304 stainless steel body, a strainer basket, and a tailpiece, ensuring long-lasting performance and resistance to corrosion.
2. Safety Information
- Always wear appropriate personal protective equipment (PPE) such as safety glasses and gloves during installation.
- Ensure the water supply to the sink is turned off before beginning installation to prevent leaks.
- Handle all components carefully to avoid injury or damage to the product.
- If you are unsure about any step, consult a qualified plumber.
- Keep small parts away from children.
3. Package Contents
Verify that all components are present before starting the installation:
- 3-1/2" Drain Fitting (Type 304 Stainless Steel Body)
- Strainer Basket
- Tailpiece
- Mounting Hardware (gaskets, nuts, washers)
4. Setup & Installation
Follow these steps to properly install your Elkay LK35B drain fitting. Basic plumbing tools such as a wrench, plumber's putty, and a screwdriver may be required.
4.1 Preparation
- Turn off the water supply to the sink.
- If replacing an old drain, remove it and clean the sink drain opening thoroughly.
- Apply a thin bead of plumber's putty around the underside of the drain fitting's flange.
4.2 Installation Steps
- Insert the drain fitting flange into the sink drain opening from the top. Press firmly to create a seal with the plumber's putty.
- From underneath the sink, slide the rubber gasket, then the friction washer, and finally the locknut onto the drain fitting's threaded body.
- Tighten the locknut by hand, then use a wrench to secure it firmly. Do not overtighten, as this can damage the sink or fitting.
- Attach the tailpiece to the bottom of the drain fitting using the provided slip nut and washer. Ensure a tight seal.
- Connect the tailpiece to your existing P-trap assembly.
- Wipe away any excess plumber's putty from around the drain opening.
Figure 1: Elkay LK35B 3-1/2 inch Drain Fitting with its components, including the stainless steel body, strainer basket, and tailpiece, ready for installation.
4.3 Post-Installation Check
- Turn on the water supply and fill the sink with water.
- Remove the strainer basket and open the drain.
- Carefully inspect all connections under the sink for any leaks. Tighten connections as needed.
5. Operating Instructions
The Elkay LK35B drain fitting is designed for simple operation:
- Strainer Basket: Place the strainer basket into the drain opening to catch food particles and debris, preventing clogs in your plumbing.
- Draining: To drain water from the sink, simply lift the strainer basket.
- Stopping Water: The strainer basket can also be pressed down to create a seal, allowing the sink to hold water. Ensure the basket is clean for an effective seal.
6. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your drain fitting.
- Daily Cleaning: Remove the strainer basket and empty any collected debris. Rinse the basket and the drain opening with warm water.
- Deep Cleaning: For a more thorough clean, use a mild dish soap and a soft cloth or sponge. Avoid abrasive cleaners, scouring pads, or harsh chemicals, as these can scratch the stainless steel finish.
- Preventing Stains: Wipe down the drain fitting after use to prevent water spots and mineral buildup, especially in hard water areas.
- Corrosion Resistance: The Type 304 stainless steel is highly resistant to corrosion. However, prolonged exposure to strong acids or bleach should be avoided.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Leakage around the drain flange | Improperly applied plumber's putty or loose locknut. | Ensure plumber's putty is evenly applied. Tighten the locknut underneath the sink. If leakage persists, remove, reapply putty, and reinstall. |
| Leakage at tailpiece connection | Loose slip nut or worn washer. | Tighten the slip nut. Replace the washer if it appears worn or damaged. |
| Slow draining | Strainer basket clogged with debris or P-trap blockage. | Remove and clean the strainer basket. Check the P-trap for blockages and clear if necessary. |
| Strainer basket does not seal properly | Debris under the basket or worn rubber seal on the basket. | Clean the underside of the strainer basket and the drain opening. Replace the strainer basket if the seal is damaged. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | LK35B |
| Drain Size | 3-1/2 inches |
| Material | Type 304 Stainless Steel |
| Components | Body, Strainer Basket, Tailpiece |
| Item Weight | 1.04 pounds |
| Product Dimensions | 4.4 x 4.4 x 7.3 inches |
| Finish | Stainless Steel |
9. Warranty & Support
Elkay products are manufactured to high-quality standards. For specific warranty information, please refer to the warranty card included with your purchase or visit the official Elkay website. For technical support or assistance, please contact Elkay customer service through their official channels.
Elkay Customer Service: www.elkay.com/us/en/support.html