1. Product Overview
The Grohe Tempesta Cosmopolitan 100 Shower Rail Set, model 27789002, is a high-quality shower system designed for modern bathrooms. It features a hand shower with three distinct spray patterns, a durable 900 mm shower bar, and a sleek chrome finish. This set is engineered for ease of use and long-lasting performance, incorporating Grohe's advanced technologies for water efficiency and easy maintenance.
Image 1.1: The Grohe Tempesta Cosmopolitan 100 Shower Rail Set, showcasing the hand shower, shower bar, and chrome finish.
2. Safety Information
Please read all instructions carefully before installation and use. Failure to follow these instructions may result in injury or property damage.
- Ensure water supply is turned off before beginning any installation or maintenance.
- Use appropriate tools and protective equipment during installation.
- If you are unsure about any part of the installation, consult a qualified plumber.
- Do not use abrasive cleaners or solvents on the chrome finish, as this may damage the surface.
3. Package Contents
Verify that all components are present before starting installation:
- Grohe Tempesta Cosmopolitan 100 Hand Shower (3 spray types)
- Shower Bar (900 mm)
- Shower Hose (1750 mm)
- Wall Mounts and Fixings
- Installation Manual
4. Setup and Installation
This shower rail set is designed for wall mounting. Professional installation is recommended for optimal performance and safety.
4.1. Required Tools (Not Included)
- Drill
- Drill bits appropriate for wall material
- Measuring tape
- Pencil
- Level
- Screwdriver
4.2. Installation Steps
- Prepare the Installation Area: Turn off the main water supply. Clear the area where the shower rail will be installed.
- Mark Drilling Points: Hold the shower bar against the wall at the desired height. Use a level to ensure it is straight. Mark the positions for the wall mounts with a pencil. Refer to the dimension diagram for recommended spacing.
- Drill Holes: Drill holes at the marked points using an appropriate drill bit for your wall type. Insert wall plugs if necessary.
- Attach Wall Mounts: Secure the wall mounts to the wall using the provided screws.
- Install Shower Bar: Slide the shower bar onto the secured wall mounts. Ensure it is firmly in place.
- Connect Shower Hose: Attach one end of the 1750 mm shower hose to the hand shower and the other end to your shower outlet. Ensure all connections are hand-tightened, then use a wrench for a final quarter turn, being careful not to overtighten.
- Test for Leaks: Turn on the water supply and check all connections for leaks.
Image 4.1: Installation diagram with key dimensions (920mm bar length, 100mm hand shower diameter, 70mm wall clearance, G 1/2 connection).
5. Operating Instructions
The Grohe Tempesta Cosmopolitan 100 hand shower offers three distinct spray patterns for a personalized shower experience.
5.1. Adjusting Spray Patterns
To change the spray pattern, simply rotate the spray plate on the hand shower head. The three available spray types are:
- Rain Spray: A soft, wide spray that mimics natural rain, ideal for a relaxing shower.
- Jet Spray: A focused, powerful spray for invigorating cleansing or rinsing.
- Massage Spray: A pulsating spray designed to soothe muscles and provide a stimulating sensation.
Image 5.1: The hand shower delivering a wide, refreshing spray.
5.2. Adjusting Hand Shower Height and Angle
The hand shower holder can be easily adjusted along the 900 mm shower bar to suit individual preferences. To adjust the height, press the button or lever on the holder and slide it up or down. The angle of the hand shower can also be tilted to direct the water flow as desired.
Image 5.2: The hand shower positioned lower on the rail, demonstrating height adjustability.
6. Maintenance
Regular cleaning and maintenance will ensure the longevity and optimal performance of your Grohe shower set.
6.1. Cleaning the Chrome Finish (GROHE StarLight)
The GROHE StarLight chrome finish is highly durable and easy to clean. To maintain its shine:
- Use only mild soap and water or a non-abrasive liquid cleaner specifically designed for chrome finishes.
- Wipe the surface with a soft cloth or sponge.
- Rinse thoroughly with clean water and dry with a soft cloth to prevent water spots.
- Do not use: Abrasive cleaners, scouring pads, acid-based cleaners, or cleaners containing alcohol, as these can damage the finish.
6.2. Limescale Removal (SpeedClean)
The hand shower features Grohe's SpeedClean anti-limescale system. To remove limescale buildup from the spray nozzles:
- Simply wipe the silicone nozzles with your finger or a soft cloth. The flexible silicone allows for easy removal of limescale deposits.
- For stubborn deposits, a mild descaling solution can be used, followed by thorough rinsing.
7. Troubleshooting
If you encounter issues with your shower set, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Low water pressure from hand shower | Limescale buildup in nozzles or hose; partially closed shut-off valve; low household water pressure. | Clean SpeedClean nozzles (Section 6.2); check shut-off valves are fully open; consult a plumber if household pressure is consistently low. |
| Water leaking from hose connections | Loose connection; worn washer/gasket. | Tighten connections (do not overtighten); replace washers/gaskets if damaged. |
| Hand shower not staying in position on rail | Holder mechanism is loose or worn. | Ensure the holder is properly tightened. If the issue persists, the holder may need replacement. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | 27789002 |
| Brand | GROHE |
| Product Dimensions (L x W x H) | 95 x 15 x 7.5 cm |
| Weight | 1.29 Kilograms |
| Color | Chrome |
| Style | Shower Bar 900 mm |
| Finish | Chrome (GROHE StarLight) |
| Material | Chromed |
| Hand Shower Spray Types | 3 (Rain, Jet, Massage) |
| Installation Method | Wall Mount |
| Hose Length | 1750 Millimeters |
| Efficiency | 2.5 GPM |
9. Warranty and Support
9.1. Manufacturer's Warranty
GROHE offers a 5-year manufacturer's warranty for this product when purchased and shipped directly from Amazon. For purchases made through third-party sellers, the respective seller's warranty terms apply. Please retain your proof of purchase for warranty claims.
9.2. Customer Support
For further assistance, technical support, or spare parts inquiries, please visit the official GROHE website or contact their customer service department. Contact details can typically be found on the GROHE website or in the packaging materials.
