Introduction
The Schoben Cordless Water Flosser L8 is designed to enhance your daily oral hygiene routine. This device utilizes a high-pressure water pulse to effectively remove food debris and plaque from between teeth and below the gumline, areas often missed by traditional brushing and flossing. Regular use can contribute to healthier gums, fresher breath, and a cleaner mouth.
The L8 model features multiple cleaning modes, a large water tank, and a long-lasting rechargeable battery, making it suitable for various oral care needs, including those with braces, implants, or sensitive gums.
Safety Information
- Always follow instructions for safe use.
- Keep out of reach of children.
- Do not use with damaged or broken parts.
- Do not use while sleeping or unconscious.
- This device is IPX7 waterproof and can be used in the shower. However, ensure the charging port cover is securely closed when exposed to water.
- Do not immerse the charging adapter in water.
- Use only the charging cable provided by the manufacturer.
- Do not direct water spray into the eyes, nose, or ears.
Package Contents
Verify that all items are present in the package:
- Schoben Cordless Water Flosser Unit (L8)
- Standard Nozzle (2x)
- Orthodontic Nozzle (1x)
- Periodontal Nozzle (1x)
- Tongue Cleaner Nozzle (1x)
- Brush Nozzle (1x)
- USB Charging Cable
- Travel Bag
- Instruction Manual
Product Overview

The Schoben L8 Water Flosser showing its main body, control buttons (On/Off, Mode), and the combined toothbrush head attachment.

Illustration of the 360-degree rotatable nozzle feature and the five distinct nozzle types included for comprehensive oral cleaning.
The Schoben L8 features an ergonomic design for comfortable handling. Key components include:
- Nozzle Release Button: Located at the top, press to detach the nozzle.
- Water Tank: 300ml capacity, detachable for easy filling and cleaning.
- Power Button: Turns the device On/Off.
- Mode Button: Cycles through the four cleaning modes.
- Mode Indicator Lights: Display the currently selected mode.
- Charging Port: USB port, located at the bottom, with a waterproof cover.
Setup
1. Initial Charging
Before first use, fully charge the device. Connect the USB charging cable to the charging port at the bottom of the unit and plug the other end into a compatible USB power adapter (not included). The indicator lights will show charging status. A full charge takes approximately 3 hours and provides up to 70 days of use.

The water flosser connected to its USB charging cable.
2. Attaching a Nozzle
- Select the desired nozzle (e.g., Standard, Orthodontic, Brush).
- Insert the nozzle into the hole at the top of the flosser handle until it clicks into place. Ensure it is firmly seated.
- To remove, press the nozzle release button and pull the nozzle out.
3. Filling the Water Tank
- Open the water tank cover located on the side of the unit.
- Fill the 300ml water tank with lukewarm water. You may also add mouthwash as recommended by your dentist.
- Close the water tank cover securely to prevent leakage.
Operating Instructions
- Select a Mode: Press the 'M' (Mode) button to cycle through the available cleaning modes: Soft, Normal, Strong, and DIY. Choose the mode that suits your comfort and cleaning needs.
- Position the Nozzle: Lean over a sink and place the nozzle tip into your mouth, aiming it at your gumline at a 90-degree angle.
- Power On: Press the On/Off button to start the water flow.
- Floss: Guide the water stream along your gumline, pausing briefly between teeth. Allow the water to flow into the sink.
- Clean All Areas: Ensure you clean both the front and back surfaces of your teeth, as well as around any dental work like braces or crowns. The 360-degree rotatable nozzle allows for easy access to all areas of your mouth.
- Power Off: Press the On/Off button again to stop the water flow when finished.
- Empty Tank: After use, empty any remaining water from the tank.

Demonstration of proper technique for using the water flosser for effective cleaning.
Modes and Settings
The Schoben L8 offers four distinct cleaning modes to cater to individual preferences and oral health needs:
- Soft Mode: Indicated by a green light. Provides a gentle water pressure, ideal for first-time users, individuals with sensitive gums, or those with dental implants.
- Normal Mode: Indicated by a yellow light. Offers a balanced water pressure for daily cleaning and effective plaque removal.
- Strong Mode: Indicated by a red light. Delivers powerful water pressure for deep cleaning, targeting stubborn food particles and plaque.
- DIY Mode: Allows you to customize the water pressure from 40 PSI to 120 PSI. Press and hold the mode button to adjust the pressure to your desired level. This mode is suitable for users who require specific pressure settings.
The device operates with a pulse frequency of 1800 times per minute and a water pressure range of 50-140 PSI (depending on the selected mode).
Maintenance
1. Cleaning the Unit
Wipe the exterior of the water flosser with a soft, damp cloth. Do not use abrasive cleaners or harsh chemicals.
2. Cleaning the Water Tank
The 300ml water tank is detachable for thorough cleaning. Remove the tank from the main unit and rinse it with warm water. For deeper cleaning, you can use a mild soap and brush. Ensure the tank is completely dry before reattaching.

The detachable water tank of the Schoben L8, illustrating ease of cleaning.
3. Cleaning Nozzles
Rinse nozzles under running water after each use. For optimal hygiene, it is recommended to replace nozzles every 3-6 months, or sooner if they show signs of wear.
4. Storage
Store the device in a cool, dry place away from direct sunlight. Ensure the water tank is empty before storing for extended periods.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not turn on | Low battery or no charge | Charge the device fully. |
| Weak water pressure | Low battery, clogged nozzle, or incorrect mode selected | Charge the device. Clean or replace the nozzle. Select a stronger mode (Normal, Strong, or higher DIY setting). |
| No water flow | Empty water tank, improperly attached nozzle, or airlock | Fill the water tank. Ensure the nozzle is securely clicked into place. Prime the pump by running the device over a sink until water flows. |
| Water leakage | Water tank cover not closed properly, or nozzle not seated correctly | Ensure the water tank cover is tightly closed. Re-insert the nozzle until it clicks. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | L8 |
| Brand | Schoben |
| Water Tank Capacity | 300 ml |
| Battery Capacity | 2000 mAh Lithium-ion |
| Charging Time | Approximately 3 hours |
| Usage Time per Charge | Up to 70 days (based on typical use) |
| Rated Water Pressure | 50-140 PSI (adjustable) |
| Pulse Frequency | 1600-1800 times per minute |
| Waterproof Rating | IPX7 |
| Dimensions | 26.39 x 11.99 x 7.39 cm |
| Weight | 581 grams |
| Material | Plastic |
| Power Source | Battery Powered |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or contact Schoben customer service directly. Keep your proof of purchase for any warranty claims.