Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your Eridanus ERI-1T323DG Elongated One-Piece Toilet. Please read thoroughly before beginning any procedures.
The Eridanus ERI-1T323DG toilet features a powerful dual flush system (1.1/1.6 GPF) with Siphon Jet-Let Instant Flush technology for efficient waste removal. Its one-piece design ensures effortless cleaning, and the elongated bowl provides enhanced comfort. The toilet is ADA compliant with a 17-inch comfort seat height and is designed for easy installation with a 12-inch rough-in.
Technical Specifications
- Color: Dark Gray
- Product Dimensions: 27.5"D x 15"W x 30.5"H
- Material: Ceramic
- Item Weight: 100 Pounds
- Installation Type: Floor Mounted
- Shape: Oval
- Seat Material Type: Plastic
- Item model number: ERI-1T323DG
- Flush System: Dual Flush (1.1/1.6 GPF) with Siphon Turbo Flush Technology
- Rough-in: 12 inch
- Certifications: EPA WaterSense, MaP 1000 Grams, IAPMO Certified, CEC Compliant, ADA Compliant

Image: Detailed specifications and features of the Eridanus ERI-1T323DG toilet, including dimensions and certifications.
What's in the Box
Your Eridanus ERI-1T323DG toilet package includes the following components:
- One-Piece Toilet
- Soft Closing Toilet Seat
- Pre-installed Flush Valve with 7/8" Adapter
- High-Quality Wax Ring
- Copper Floor Bolts
- Side Covers
- Installation Instruction Manual

Image: Visual representation of all components included in the toilet package, such as the toilet, seat, flush valve, wax ring, and bolts.
Setup and Installation
Proper installation is crucial for optimal performance. It is recommended that installation be performed by a licensed professional.
General Installation Steps
- Prepare the Floor Flange: Ensure the floor flange is securely installed and ready for the toilet.
- Apply Wax Ring: Evenly apply the wax ring gasket around the rear of the toilet's trapway.
- Position the Toilet: Carefully align the toilet over the floor flange and mounting bolts.
- Secure the Toilet: Install washers and nuts onto the bolts and tighten them to secure the toilet to the floor.
- Connect Water Supply: Connect the water supply line to the fill valve at the back of the toilet. Ensure all connections are tight to prevent leaks.
- Install Side Covers: Assemble and install the decorative side covers to conceal the mounting hardware.
Video: A general guide to installing the Eridanus One-Piece Toilet, demonstrating key steps from preparing the flange to securing the unit.

Image: Illustration showing the suggested inlet valve location for proper toilet installation. Incorrect valve position may hinder installation.
Operating Instructions
Your Eridanus toilet is equipped with a dual flush system, allowing you to choose between a partial flush (1.1 GPF) for liquid waste and a full flush (1.6 GPF) for solid waste, promoting water conservation.
Adjusting the Flush Button
The flush button mechanism can be adjusted to ensure proper function. Refer to the video below for detailed steps.
Video: Instructions on how to adjust the toilet flush button for optimal performance.
Adjusting Water Flow
To modify the flush volume of your toilet, adjustments can be made to the fill valve. Watch the video for a simple guide.
Video: A simple guide demonstrating how to adjust the toilet water flow for desired flush volume.

Image: Diagram illustrating the powerful siphon flush mechanism, showing 3-second faster flush and 360-degree all-around cleaning.
Maintenance
The one-piece design and fully skirted trapway of your Eridanus toilet make cleaning simple. Regular cleaning with non-abrasive cleaners is recommended.
Toilet Seat Adjustment and Removal
The soft-closing toilet seat features a quick-release design for easy removal, facilitating thorough cleaning and maintenance. Follow the video instructions for seat adjustment and removal.
Video: Instructions for adjusting and removing the toilet seat for cleaning or replacement.

Image: Close-up view of the quick-release mechanism on the toilet seat, showing how to detach it for cleaning.

Image: Illustration highlighting the slow-close seat feature with tensioned hinges and silent design for gentle closing.

Image: Diagram showing the fully skirted trapway, which contributes to the toilet's sleek appearance and ease of cleaning.
Troubleshooting
If you encounter any issues with your Eridanus toilet, please review the following common troubleshooting tips:
- Weak Flush: Check the water level in the tank. Ensure the fill valve is adjusted correctly to allow sufficient water volume. Verify that the flush button mechanism is not obstructed or misaligned.
- Continuous Running Water: Inspect the flush valve for any obstructions or wear. Ensure the fill valve is properly seated and not allowing water to continuously enter the tank.
- Leaking: Check all water supply connections for tightness. Inspect the wax ring for proper seal. If leaks persist, professional assistance may be required.
- Loose Seat: Tighten the mounting screws for the toilet seat hinges. Refer to the 'Toilet Seat Adjustment' video in the Maintenance section for guidance.
For issues not covered here, please contact customer support.
Warranty and Support
Your Eridanus ERI-1T323DG toilet comes with a limited warranty. For specific warranty details, please refer to the documentation included with your purchase or contact Eridanus customer support.
Eridanus offers customer support for any inquiries or assistance you may need. Additionally, a 30-day easy return policy is available for your convenience.





