1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your GROHE 28957000 Pop-Up Waste Assembly. Please read this manual thoroughly before installation and keep it for future reference. This pop-up waste assembly is designed for use with bathroom sinks and features a durable chrome finish.
Figure 1: GROHE 28957000 Pop-Up Waste Assembly, Chrome Finish.
2. Safety Information
Observe the following safety precautions during installation and use:
- Always turn off the main water supply before beginning any plumbing work.
- Wear appropriate personal protective equipment, such as safety glasses and gloves.
- Ensure all connections are secure to prevent leaks.
- If you are unsure about any step, consult a qualified plumber.
- Keep small parts away from children to prevent choking hazards.
3. Package Contents
Verify that all components are present before starting installation:
- Pop-Up Drain Body
- Pop-Up Stopper
- Lift Rod and Linkage Assembly
- Gaskets and Washers
- Mounting Nut
- Instruction Manual
4. Setup & Installation
4.1 Tools Required (Not Included)
- Adjustable Wrench or Basin Wrench
- Plumber's Putty or Silicone Sealant
- Teflon Tape (PTFE Thread Seal Tape)
- Screwdriver (for lift rod knob, if applicable)
4.2 Installation Steps
- Prepare the Sink Drain Opening: Clean the sink drain opening thoroughly, removing any old plumber's putty or sealant. Ensure the surface is dry and smooth.
- Apply Sealant: Apply a bead of plumber's putty or silicone sealant around the underside of the drain flange (the top part of the pop-up drain body that sits inside the sink).
- Insert Drain Body: Insert the drain body through the sink drain opening from the top. Press firmly to create a seal with the putty/sealant.
- Install Gaskets and Nut: From underneath the sink, slide the rubber washer, then the friction washer, onto the threaded tailpiece of the drain body. Thread the large mounting nut onto the tailpiece and hand-tighten.
- Tighten Securely: Use an adjustable wrench to carefully tighten the mounting nut. Do not overtighten, as this can crack the sink. Wipe away any excess plumber's putty or sealant that squeezes out.
- Connect Tailpiece to P-Trap: Apply Teflon tape to the threads of the tailpiece if connecting directly to a P-trap with threaded connections. Connect the tailpiece to your P-trap assembly. Ensure all connections are tight to prevent leaks.
- Assemble Lift Rod Linkage: Insert the pop-up stopper into the drain body. Connect the horizontal pivot rod to the lift rod and the pop-up stopper linkage. Adjust the position of the pivot rod and the lift rod to ensure smooth operation of the pop-up stopper.
- Test for Leaks: Turn on the water supply and fill the sink. Check all connections for leaks. If leaks occur, tighten connections as necessary.
5. Operation
The GROHE Pop-Up Waste Assembly operates via a lift rod mechanism:
- To Close the Drain: Pull the lift rod (typically located behind the faucet) upwards. This will lower the pop-up stopper, sealing the drain and allowing the sink to fill with water.
- To Open the Drain: Push the lift rod downwards. This will raise the pop-up stopper, allowing water to drain from the sink.
Ensure the lift rod moves freely and the stopper fully opens and closes. Adjust the linkage if necessary.
6. Maintenance
6.1 Cleaning the Chrome Finish
To maintain the pristine chrome finish of your GROHE pop-up waste assembly:
- Clean regularly with a soft cloth and mild soap or a non-abrasive cleaner specifically designed for chrome finishes.
- Avoid using abrasive cleaners, scouring pads, or harsh chemicals (e.g., ammonia, bleach, acid-based cleaners) as these can damage the finish.
- Rinse thoroughly with clean water after cleaning and dry with a soft cloth to prevent water spots.
6.2 Cleaning the Pop-Up Stopper
Periodically remove the pop-up stopper to clean hair and debris that may accumulate:
- Remove Stopper: Disconnect the pivot rod from the stopper linkage (usually by unscrewing a cap or clip on the pivot rod). Then, lift the stopper out of the drain opening.
- Clean Debris: Remove any hair, soap scum, or other debris from the stopper and inside the drain body.
- Reassemble: Reinsert the stopper and reconnect the pivot rod linkage. Test operation.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Leakage at drain opening | Improperly sealed drain flange; loose mounting nut. | Ensure plumber's putty or silicone sealant is properly applied. Tighten the mounting nut from underneath the sink. |
| Leakage at P-trap connection | Loose connection; missing or damaged washer; insufficient Teflon tape. | Tighten the P-trap connection. Check and replace washers if damaged. Apply Teflon tape to threaded connections. |
| Pop-up stopper does not open/close fully | Linkage misaligned or disconnected; debris obstructing stopper. | Check and adjust the lift rod and pivot rod linkage. Remove and clean the pop-up stopper and drain body for debris. |
| Slow draining | Accumulation of hair and debris around the stopper or in the drain pipe. | Remove and clean the pop-up stopper. Clear any blockages in the drain pipe. |
8. Specifications
- Brand: GROHE
- Model Number: 28957000
- Finish: Chrome
- Item Weight: Approximately 1 pound
- Product Dimensions: Approximately 1 x 1 x 1 inches (packaging dimensions may vary)
- Country Of Origin: China
9. Warranty & Support
9.1 Warranty Information
This GROHE product comes with a 1-year Limited Warranty from the date of purchase. This warranty covers manufacturing defects under normal use and service. For full warranty terms and conditions, please refer to the official GROHE warranty documentation or contact GROHE customer service.
9.2 Customer Support
For technical assistance, replacement parts, or warranty claims, please contact GROHE customer support. Visit the official GROHE website for contact details and further product information.
GROHE Official Website: www.grohe.us