Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of the Kohler Wellworth KOH3998-0 Two-Piece Elongated Toilet. This high-efficiency toilet features a 1.28 gallons per flush (GPF) rate, durable vitreous china construction, and a comfortable elongated bowl design. Please read all instructions carefully before proceeding with installation or use.
Figure 1: Kohler Wellworth KOH3998-0 Two-Piece Elongated Toilet in White.
Setup and Installation
The Kohler Wellworth KOH3998-0 toilet features a two-piece configuration for easier handling and installation. It is designed for a standard 12-inch rough-in and installs in a floor-mount configuration.
Installation Steps:
- Prepare the Installation Area: Ensure the floor flange is properly installed and the area is clean and ready for toilet placement.
- Attach the Tank to the Bowl:
- Verify the bolts are fully pressed into the tank gasket.
- Orient the tank so the bolts align with the holes in the toilet bowl.
- Carefully lower the toilet tank onto the toilet bowl.
- Slide washers onto the bolts and loosely thread on the nuts from underneath the bowl.
- Alternately hand-tighten each hex nut.
- Using an adjustable wrench, finish tightening the nuts until the gasket is compressed between the tank and the bowl. Do not overtighten.
Figure 2: Illustration of the 3-bolt installation process for securing the tank to the bowl.
- Level the Toilet Tank:
- Ensure the toilet tank is level from front to back and side to side.
- If the tank is not level, loosen or tighten the appropriate nuts to achieve a level position.
- Connect the Supply Line: Connect the water supply line to the fill valve. Do not overtighten.
- Install the Refill Hose: Clip the refill hose onto the flush valve. Ensure the valve float has room to move freely. Adjust the fill valve position as needed.
- Test for Leaks: Turn on the water supply and allow the tank to fill. Flush the toilet several times and verify there are no leaks between the tank and the bowl, or at the supply line connection.
- Install the Tank Lid: Place the tank lid securely on the tank.
Installation Video:
Video 1: Official Kohler guide for installing toilet tanks on most two-piece toilets. This video demonstrates the process of attaching the tank to the bowl and connecting the water supply.
Operating Instructions
The Kohler Wellworth KOH3998-0 toilet operates with a simple gravity flush mechanism, designed for efficient water usage at 1.28 GPF. The elongated bowl provides enhanced comfort.
Flushing the Toilet:
- To flush, press down firmly on the chrome lever located on the left side of the tank.
- The gravity flush system will efficiently clear the bowl using 1.28 gallons of water.
Figure 3: Internal view of the toilet tank showing the fill valve and flush mechanism.
Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your Kohler Wellworth toilet. The vitreous china material is designed for easy cleaning.
Cleaning:
- Use a soft cloth or sponge with a mild, non-abrasive cleaner to clean the exterior and interior surfaces.
- Avoid harsh chemicals, abrasive scrubbers, or cleaners containing bleach, as these can damage the finish.
- For the plastic seat, use mild soap and water.
General Care:
- Periodically check the water supply line and tank connections for any signs of leaks.
- Ensure the flush lever operates smoothly.
Troubleshooting
This section addresses common issues you might encounter with your toilet. For more complex problems, please refer to the official Kohler support resources.
- Toilet runs continuously: Check the flapper or flush valve for proper seating. Ensure the refill hose is correctly positioned and not interfering with the float.
- Weak flush: Verify the water level in the tank is at the recommended line. Ensure the flush lever chain has the correct amount of slack.
- Leaks: Inspect all connections (supply line, tank-to-bowl bolts) for tightness. Replace gaskets or seals if worn.
Specifications
| Feature | Detail |
|---|---|
| Brand | Kohler |
| Model Number | KOH3998-0 |
| Color | White |
| Product Dimensions | 33"D x 22"W x 20"H |
| Material | Vitreous China (Bowl/Tank), Plastic (Seat) |
| Item Weight | 1 Pounds (Note: This weight seems unusually low for a toilet. Please refer to product packaging for accurate weight.) |
| Installation Type | Floor Mounted |
| Shape | Elongated |
| Water Consumption | 1.28 Gallons per Flush (GPF) |
| Flush Type | Gravity Flush Toilets |
| Number of Handles | 1 |
| Certification | WaterSense Certified |
| Rough-In | 12 inches |
Figure 4: Key dimensions of the Kohler Wellworth KOH3998-0 toilet.
Figure 5: Illustration comparing elongated and round-front toilet bowl shapes.
Figure 6: WaterSense certification logo, highlighting the toilet's water efficiency.
Warranty
This Kohler Wellworth KOH3998-0 toilet is covered under Kohler's one-year limited warranty. For specific terms and conditions, please refer to the warranty documentation included with your product or visit the official Kohler website.
Support
For further assistance, technical support, or to inquire about replacement parts, please contact Kohler customer service. You can find contact information on the official Kohler website or in the documentation provided with your product.
