1. Introduction
This instruction manual provides essential information for the proper installation, operation, and maintenance of your GROHE 28947000 Rough Plumbing Pipe-Fittings. Please read this manual thoroughly before beginning installation to ensure correct setup and to prevent damage or injury. Keep this manual for future reference.
For more information about GROHE products, please visit the official GROHE Store.
2. Safety Information
Always observe basic safety precautions when installing or maintaining plumbing fixtures. Failure to follow these instructions could result in property damage or personal injury.
- Ensure the main water supply is turned off before starting any installation work.
- Wear appropriate personal protective equipment, such as safety glasses and gloves.
- If you are unsure about any part of the installation process, consult a qualified plumber.
- Do not use excessive force when tightening connections to avoid damaging components.
- Keep small parts away from children.
3. Package Contents
Verify that all components are present and undamaged before beginning installation. The package should contain:
- 1 x GROHE 28947000 Basin U-Bend (Odour trap)
- Associated seals and connection components
Image 1: GROHE 28947000 Rough Plumbing Pipe-Fitting. This image shows the main component of the pipe fitting, a basin U-bend, in a Starlight Chrome finish.
4. Setup and Installation
This GROHE pipe fitting is designed to be compatible with all GROHE washbasins. Follow these general steps for installation. Specific basin configurations may require slight adjustments.
Tools Required (Not Included):
- Adjustable wrench or pipe wrench
- Plumber's tape (PTFE tape)
- Bucket or towel for catching residual water
Installation Steps:
- Prepare the Area: Turn off the water supply to the basin. Place a bucket or towels under the existing drain to catch any water.
- Remove Old Fitting (if applicable): Carefully disconnect and remove the old pipe fitting. Clean the drain opening and connecting pipes thoroughly.
- Assemble the U-Bend: Apply plumber's tape to threaded connections if recommended by local plumbing codes or if a tighter seal is desired. Connect the U-bend components according to the radial style design, ensuring all seals are correctly seated.
- Connect to Basin Drain: Attach the top section of the U-bend to the basin's drain tailpiece. Hand-tighten first, then use a wrench for a snug fit, being careful not to overtighten.
- Connect to Wall Drain: Connect the horizontal outlet of the U-bend to the wall drain pipe. Ensure a proper seal with the provided washers or gaskets.
- Check Alignment: Verify that the entire assembly is properly aligned and level to ensure efficient drainage.
- Test for Leaks: Slowly turn on the water supply and check all connections for leaks. Run water through the basin for several minutes, observing closely. Tighten any leaking connections slightly until the leak stops.
5. Operating
Once installed, the GROHE 28947000 pipe fitting operates passively as part of your basin's drainage system. Its primary function is to create a water seal (U-bend) that prevents sewer gases from entering your living space while allowing wastewater to drain freely.
- Ensure water flows smoothly down the drain without gurgling or backing up.
- Periodically check for any signs of leakage around the connections.
6. Maintenance
Regular maintenance will help prolong the life and maintain the appearance of your GROHE pipe fitting.
- Cleaning: Wipe the Starlight Chrome finish with a soft, dry cloth. Avoid abrasive cleaners, scouring pads, or chemical agents that can damage the chrome plating.
- Inspection: Periodically inspect the pipe fitting for any signs of corrosion, loose connections, or leaks. Address any issues promptly.
- Clearing Blockages: If a blockage occurs, the U-bend can typically be unscrewed from the bottom for cleaning. Place a bucket underneath before opening to catch water and debris.
7. Troubleshooting
If you encounter issues with your GROHE pipe fitting, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Leakage at connections | Loose connections, damaged seals, incorrect installation of plumber's tape. | Tighten connections carefully. Inspect and replace damaged seals. Reapply plumber's tape if necessary. |
| Slow drainage or blockage | Accumulation of hair, soap scum, or debris in the U-bend or drain pipe. | Turn off water supply. Place a bucket under the U-bend. Unscrew the bottom of the U-bend to clear debris. Reassemble and test. |
| Sewer gas odor | U-bend is dry (water seal evaporated), or improper seal at connections. | Run water into the basin to refill the U-bend. Check all connections for leaks and ensure they are tight. |
8. Specifications
| Brand | GROHE |
| Model Number | 28947000 |
| Material | Stainless Steel |
| Color | GROHE CHROME (Starlight Chrome) |
| Style | Odour trap (Basin U-Bend), Radial |
| Finish Types | Polished |
| Product Dimensions (D x W x H) | 4.41"D x 7.95"W x 2.91"H (11.2 cm D x 20.2 cm W x 7.4 cm H) |
| Item Weight | 0.34 Kilograms |
| Installation Type | Undermount |
| Drain Type | Pop-Up (refers to compatible drain type, not the fitting itself) |
| Compatibility | Fits all GROHE washbasins |
9. Warranty and Support
GROHE products are manufactured to the highest quality standards and are backed by a manufacturer's warranty. For specific warranty details, please refer to the documentation included with your purchase or visit the official GROHE website.
If you require technical assistance, have questions about installation, or need to report a defect, please contact GROHE customer support. Contact information can typically be found on the GROHE website or on your purchase receipt.
Online Support: Visit the GROHE Store on Amazon