1. Introduction
Thank you for choosing the Geberit Monolith Flushing System. This manual provides essential information for the proper installation, operation, and maintenance of your new flushing system. Please read these instructions carefully before beginning installation or use to ensure optimal performance and longevity of the product. Keep this manual for future reference.
2. Product Overview
The Geberit 131.144.SF.1 Monolith is a complete system designed for replacing or installing a floor-mounted toilet. It integrates the cistern and flushing technology into a sleek, self-supporting module.
Key Features:
- Dual-flush low-consumption flushing volume: 1.6 / 0.8 GPF (6 / 3 LPF)
- Concealed cistern fully insulated against condensation
- Fill valve flow rate at 7 psi (0.5 bar): 1.1 gpm (0.07 l/s)
- Fill valve maximum fluid temperature: 77°F (25°C)
- Designed for WC seated heights of 17 3/4 inches
- Compatible with new or existing rough-in dimensions from 9 to 12 inches
- Includes Impuls380 fill valve
Components Included:
The system typically includes the Geberit Monolith module, a closet flange outlet, a Duravit Starck3 elongated toilet, and a soft-close seat/lid. The water supply connection can be concealed (behind Monolith) or exposed (right or left of Monolith).
Figure 1: Geberit Monolith Flushing System, featuring white glass and matte silver trim, designed for floor-standing toilets.
3. Setup and Installation
Installation of the Geberit Monolith system requires basic plumbing knowledge and adherence to local building codes. It is recommended that installation be performed by a qualified professional.
Pre-Installation Checks:
- Verify existing rough-in dimensions are between 9 and 12 inches.
- Ensure water supply connection is accessible and compatible.
- Confirm all components listed in Section 2 are present and undamaged.
General Installation Steps (Consult full installation guide for detailed instructions):
- Prepare the floor area, ensuring it is clean, level, and structurally sound.
- Position the Monolith module according to the desired rough-in and water supply location.
- Connect the water supply to the Monolith cistern.
- Secure the Monolith module to the floor and wall as per manufacturer guidelines.
- Install the closet flange outlet and connect it to the waste pipe.
- Mount the Duravit Starck3 elongated toilet bowl onto the closet flange and secure it to the Monolith module.
- Install the soft-close seat and lid.
- Perform a leak test and adjust flushing mechanisms if necessary.
4. Operating Instructions
The Geberit Monolith Flushing System features a dual-flush mechanism for water conservation.
Flushing Operation:
- Full Flush: Press the larger flush button for a 1.6 GPF (6 LPF) flush, suitable for solid waste.
- Reduced Flush: Press the smaller flush button for a 0.8 GPF (3 LPF) flush, suitable for liquid waste.
Ensure the flush buttons are fully depressed and released for proper operation.
5. Maintenance
Regular maintenance will help preserve the appearance and functionality of your Geberit Monolith system.
Cleaning Instructions:
- For the glass surface, use a soft cloth and a mild, non-abrasive glass cleaner. Avoid harsh chemicals or abrasive pads.
- For the toilet bowl and seat, use standard toilet cleaning products. Do not use abrasive cleaners on the soft-close seat.
- Wipe down the matte silver trim with a soft, damp cloth.
Condensation Prevention:
The concealed cistern is fully insulated against condensation. If condensation appears on the exterior, check for proper ventilation in the bathroom or consult a professional.
6. Troubleshooting
This section addresses common issues you might encounter. For problems not listed here, please contact customer support.
Common Issues and Solutions:
- Weak Flush: Ensure the water supply valve is fully open. Check for any obstructions in the toilet bowl or trapway.
- Continuous Running Water: Inspect the fill valve and flush valve for proper seating. Mineral deposits can sometimes prevent a complete seal.
- Leaks: Check all connections for tightness. If leaks persist, turn off the water supply and contact a plumber.
- Slow Tank Filling: Verify the water supply pressure. The fill valve flow rate is 1.1 gpm at 7 psi.
7. Specifications
| Attribute | Detail |
|---|---|
| Model Number | 131.144.SF.1 |
| Brand | Geberit |
| Material | Glass (Monolith), Wood (Seat) |
| Installation Type | Floor Mounted |
| Item Weight | 50 Pounds |
| Flush Volume | 1.6 / 0.8 GPF (6 / 3 LPF) |
| Fill Valve Flow Rate (at 7 psi) | 1.1 gpm (0.07 l/s) |
| Fill Valve Max. Fluid Temp | 77°F (25°C) |
| Rough-in Compatibility | 9" to 12" |
| ASIN | B00CLEGVOM |
| GTIN | 04025416299172 |
8. Warranty Information
The Geberit Monolith Flushing System is backed by a Limited Lifetime Warranty from the manufacturer. Please retain your proof of purchase for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or visit the official Geberit website.
9. Customer Support
If you have any questions, require technical assistance, or need to report a problem with your Geberit Monolith Flushing System, please contact Geberit customer support. Contact information can typically be found on the manufacturer's website or on the product packaging.
